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diff --git "a/CoreML/Python\345\237\272\347\241\200\345\205\245\351\227\250/Reference/teach_your_kids_to_code_a_parent-friendly_guide_to_python_programming__2015_.pdf" "b/CoreML/Python\345\237\272\347\241\200\345\205\245\351\227\250/Reference/teach_your_kids_to_code_a_parent-friendly_guide_to_python_programming__2015_.pdf"
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diff --git a/README.md b/README.md
index 387fcbf..b2aeac0 100644
--- a/README.md
+++ b/README.md
@@ -1,40 +1,24 @@
 iOS Course
 ==========
 
-iOS开发初学者入门
+-----------------------------------
 
-1.iOS开发初学者入门教程
+1.让不懂编程的人爱上iPhone开发-
 
 iOS7 + Objective-C + Xcode 5(已有）
 
-iOS11 + Swift4 + Xcode 9（已有）
+iOS12 + Swift4.2 + Xcode10（已有）
 
-iOS12 + Swift4.2 + Xcode10（更新中）
+iOS13 + Swift5.1 + Xcode11-使用SwiftUI（更新中）
 
-2.ARKit入门教程
+-----------------------------------
 
-Series1: Unity3d + ARKit  
-Series2: iOS Native + ARKit  
 
-3.CoreML入门教程
+2.iOS AI开发入门
 
+iOS + CoreML （更新中）
 
-讨论群-笨猫学编程QQ群：
-375143733
 
-Github:
-https://github.com/eseedo
-
-个人网站：
-http://icode.ai/ （暂未启用）
-http://icode.fun (暂未启用）
-
-知乎专栏：
-
-https://zhuanlan.zhihu.com/kidscoding
-
-新浪博客:
-http://blog.sina.com.cn/eseedo
 
 
 
diff --git a/iOS Basic/.DS_Store b/iOS Basic/.DS_Store
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diff --git a/iOS7/iOS Competencies Poster.pdf b/iOS Basic/Others/iOS Competencies Poster.pdf
similarity index 100%
rename from iOS7/iOS Competencies Poster.pdf
rename to iOS Basic/Others/iOS Competencies Poster.pdf
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diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..57e978d
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..d278b88
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha10/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..ffdbe91
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha10/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,111 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        //开启新的游戏回合
+       startNewRound()
+    }
+
+    @IBAction func showAlert(){
+        
+        //1.定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //2.计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //3.计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
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+/* End PBXSourcesBuildPhase section */
+
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+			isa = PBXVariantGroup;
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+				7896117321B0003D002C0A61 /* Base */,
+			);
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+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
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+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
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+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
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+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..6c4fd71
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..0fd7c0c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="216" y="158" width="138" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="就这么愉快的决定了"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                                <connections>
+                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mdz-eS-thv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha11/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..7d848f3
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha11/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,124 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        //开启新的游戏回合
+       startNewGame()
+    }
+
+    @IBAction func showAlert(){
+        
+        //定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //重新来过按钮的触碰事件
+    @IBAction func startOver(){
+        
+        startNewGame()
+    }
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    //开启新的游戏
+    func startNewGame(){
+        
+        score = 0
+        round = 0
+        startNewRound()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
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+				GCC_NO_COMMON_BLOCKS = YES;
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+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
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+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
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+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..215a71e
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..0fd7c0c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="216" y="158" width="138" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="就这么愉快的决定了"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                                <connections>
+                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mdz-eS-thv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha12/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..7d848f3
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha12/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,124 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        //开启新的游戏回合
+       startNewGame()
+    }
+
+    @IBAction func showAlert(){
+        
+        //定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //重新来过按钮的触碰事件
+    @IBAction func startOver(){
+        
+        startNewGame()
+    }
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    //开启新的游戏
+    func startNewGame(){
+        
+        score = 0
+        round = 0
+        startNewRound()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..f14f6fa
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..e767c1f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="7WS-Hf-3cc">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="216" y="158" width="100" height="37"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <size key="titleShadowOffset" width="0.0" height="1"/>
+                                <state key="normal" title="朕意已决" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <state key="highlighted" backgroundImage="Button-Highlighted">
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="208" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="10" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="48" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="84" height="25"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="48" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="36" height="24"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="492" y="217" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="35" y="218" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
+                                <connections>
+                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mdz-eS-thv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="Background" width="568" height="320"/>
+        <image name="Button-Highlighted" width="100" height="37"/>
+        <image name="Button-Normal" width="100" height="37"/>
+        <image name="InfoButton" width="10" height="22"/>
+        <image name="SmallButton" width="32" height="32"/>
+        <image name="StartOverIcon" width="20" height="20"/>
+    </resources>
+</document>
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha13/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..158b1cb
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha13/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,146 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        
+        
+        //更改滑动条的外观
+        let thumbImageNormal =  UIImage(named: "SliderThumb-Normal")!
+        slider.setThumbImage(thumbImageNormal, for: .normal)
+        
+        let thumbImageHighlighted = UIImage(named: "SliderThumb-Highlighted")!
+        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
+        
+        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
+        
+        let trackLeftImage = UIImage(named: "SliderTrackLeft")!
+        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
+        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
+        
+        let trackRightImage = UIImage(named: "SliderTrackRight")!
+        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
+        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
+        
+
+        
+        
+        //开启新的游戏回合
+       startNewGame()
+    }
+
+    @IBAction func showAlert(){
+        
+        //定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //重新来过按钮的触碰事件
+    @IBAction func startOver(){
+        
+        startNewGame()
+    }
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    //开启新的游戏
+    func startNewGame(){
+        
+        score = 0
+        round = 0
+        startNewRound()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..c375002
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,343 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+		78E2608521C1E66800BBD33C /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E2608421C1E66800BBD33C /* AboutViewController.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E2608421C1E66800BBD33C /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+				78E2608421C1E66800BBD33C /* AboutViewController.swift */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78E2608521C1E66800BBD33C /* AboutViewController.swift in Sources */,
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..e881e3f
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AboutViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AboutViewController.swift
new file mode 100644
index 0000000..83dcd74
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AboutViewController.swift	
@@ -0,0 +1,33 @@
+//
+//  AboutViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/13/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class AboutViewController: UIViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+    }
+    
+    @IBAction func close(){
+        
+        dismiss(animated: true, completion: nil)
+    }
+    /*
+    // MARK: - Navigation
+
+    // In a storyboard-based application, you will often want to do a little preparation before navigation
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
+        // Get the new view controller using segue.destination.
+        // Pass the selected object to the new view controller.
+    }
+    */
+
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/250px-Game_of_Thrones_title_card.jpg b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/250px-Game_of_Thrones_title_card.jpg
new file mode 100644
index 0000000..519aaf1
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/250px-Game_of_Thrones_title_card.jpg differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/Contents.json
new file mode 100644
index 0000000..1a10462
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/250px-Game_of_Thrones_title_card.imageset/Contents.json	
@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "250px-Game_of_Thrones_title_card.jpg",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..369f8db
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,218 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="7WS-Hf-3cc">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="216" y="158" width="100" height="37"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <size key="titleShadowOffset" width="0.0" height="1"/>
+                                <state key="normal" title="朕意已决" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <state key="highlighted" backgroundImage="Button-Highlighted">
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="208" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="10" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="48" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="84" height="25"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="48" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="36" height="24"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="492" y="217" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
+                                <connections>
+                                    <segue destination="qjb-qI-Y3U" kind="presentation" modalTransitionStyle="flipHorizontal" id="J7T-nT-AdY"/>
+                                </connections>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="35" y="218" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
+                                <connections>
+                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mdz-eS-thv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+        <!--About View Controller-->
+        <scene sceneID="znh-wC-RGz">
+            <objects>
+                <viewController id="qjb-qI-Y3U" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="319-Mu-3JL">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="5Ps-Wj-Xfo">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" fixedFrame="YES" editable="NO" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="I1b-W6-45z">
+                                <rect key="frame" x="20" y="8" width="520" height="267"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <color key="backgroundColor" white="1" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <mutableString key="text">Hear my words, and bear witness to my vow.
+Night gathers, and now my watch begins.
+I shall take no wife, hold no lands, father no children.
+I shall wear no crowns and win no glory.
+I shall live and die at my post.
+I am the sword in the darkness,
+I am the watcher on the walls.
+I am the fire that burns against the cold,
+the light that brings the dawn,
+the horn that wakes the sleepers,
+the shield that guards the realms of men.
+I pledge my life and honor to the Night's Watch,
+for this night, and all the nights to come.
+
+</mutableString>
+                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
+                            </textView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Oit-iu-0ZP">
+                                <rect key="frame" x="237" y="283" width="60" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="Close" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058820000001" green="0.1176470588" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                </state>
+                                <state key="highlighted" backgroundImage="Button-Highlighted"/>
+                                <connections>
+                                    <action selector="close" destination="qjb-qI-Y3U" eventType="touchUpInside" id="6cx-hA-3Ci"/>
+                                </connections>
+                            </button>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="250px-Game_of_Thrones_title_card" translatesAutoresizingMaskIntoConstraints="NO" id="kgq-z6-Xcp">
+                                <rect key="frame" x="367" y="93" width="191" height="97"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <viewLayoutGuide key="safeArea" id="qa3-Tu-Wqu"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="ibg-f5-i7u" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="934.85915492957747" y="112.5"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="250px-Game_of_Thrones_title_card" width="250" height="141"/>
+        <image name="Background" width="568" height="320"/>
+        <image name="Button-Highlighted" width="100" height="37"/>
+        <image name="Button-Normal" width="100" height="37"/>
+        <image name="InfoButton" width="10" height="22"/>
+        <image name="SmallButton" width="32" height="32"/>
+        <image name="StartOverIcon" width="20" height="20"/>
+    </resources>
+</document>
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha14/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..158b1cb
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha14/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,146 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        
+        
+        //更改滑动条的外观
+        let thumbImageNormal =  UIImage(named: "SliderThumb-Normal")!
+        slider.setThumbImage(thumbImageNormal, for: .normal)
+        
+        let thumbImageHighlighted = UIImage(named: "SliderThumb-Highlighted")!
+        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
+        
+        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
+        
+        let trackLeftImage = UIImage(named: "SliderTrackLeft")!
+        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
+        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
+        
+        let trackRightImage = UIImage(named: "SliderTrackRight")!
+        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
+        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
+        
+
+        
+        
+        //开启新的游戏回合
+       startNewGame()
+    }
+
+    @IBAction func showAlert(){
+        
+        //定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //重新来过按钮的触碰事件
+    @IBAction func startOver(){
+        
+        startNewGame()
+    }
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    //开启新的游戏
+    func startNewGame(){
+        
+        score = 0
+        round = 0
+        startNewRound()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..470f299
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,347 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7878402321C34350007CD4E3 /* BullsEye.html in Resources */ = {isa = PBXBuildFile; fileRef = 7878402221C34350007CD4E3 /* BullsEye.html */; };
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+		78E2608521C1E66800BBD33C /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E2608421C1E66800BBD33C /* AboutViewController.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7878402221C34350007CD4E3 /* BullsEye.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; name = BullsEye.html; path = ../../../Resources/BullsEye.html; sourceTree = "<group>"; };
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E2608421C1E66800BBD33C /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7878402221C34350007CD4E3 /* BullsEye.html */,
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+				78E2608421C1E66800BBD33C /* AboutViewController.swift */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
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+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7878402321C34350007CD4E3 /* BullsEye.html in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78E2608521C1E66800BBD33C /* AboutViewController.swift in Sources */,
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
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+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
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+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
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+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..526395d
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AboutViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AboutViewController.swift
new file mode 100644
index 0000000..5069323
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AboutViewController.swift	
@@ -0,0 +1,49 @@
+//
+//  AboutViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/13/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+import WebKit
+
+class AboutViewController: UIViewController {
+    
+    @IBOutlet weak var webView: WKWebView!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        //添加网页视图
+//        if let url = Bundle.main.url(forResource: "BullsEye", withExtension: "html"){
+//        let  request = URLRequest(url: url)
+//        webView.load(request)
+//    }
+        
+        //使用真实世界的网页
+            if let url = URL.init(string: "http://www.apple.com"){
+                let request = URLRequest(url: url)
+                webView.load(request)
+            }
+        
+
+        // Do any additional setup after loading the view.
+    }
+    
+    @IBAction func close(){
+        
+        dismiss(animated: true, completion: nil)
+    }
+    /*
+    // MARK: - Navigation
+
+    // In a storyboard-based application, you will often want to do a little preparation before navigation
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
+        // Get the new view controller using segue.destination.
+        // Pass the selected object to the new view controller.
+    }
+    */
+
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..238a0a3
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,202 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="7WS-Hf-3cc">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="216" y="158" width="100" height="37"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <size key="titleShadowOffset" width="0.0" height="1"/>
+                                <state key="normal" title="朕意已决" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <state key="highlighted" backgroundImage="Button-Highlighted">
+                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                </state>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="208" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="10" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="48" height="20"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="84" height="25"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="48" height="19"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="calibratedRGB"/>
+                                <size key="shadowOffset" width="0.0" height="1"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="36" height="24"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="492" y="217" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
+                                <connections>
+                                    <segue destination="qjb-qI-Y3U" kind="presentation" modalTransitionStyle="flipHorizontal" id="J7T-nT-AdY"/>
+                                </connections>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="35" y="218" width="32" height="32"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
+                                <connections>
+                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="Mdz-eS-thv"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+        <!--About View Controller-->
+        <scene sceneID="znh-wC-RGz">
+            <objects>
+                <viewController id="qjb-qI-Y3U" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="319-Mu-3JL">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="5Ps-Wj-Xfo">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <wkWebView contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="QBm-r6-6cO">
+                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <color key="backgroundColor" red="0.36078431370000003" green="0.38823529410000002" blue="0.4039215686" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                <wkWebViewConfiguration key="configuration">
+                                    <audiovisualMediaTypes key="mediaTypesRequiringUserActionForPlayback" none="YES"/>
+                                    <wkPreferences key="preferences"/>
+                                </wkWebViewConfiguration>
+                            </wkWebView>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Oit-iu-0ZP">
+                                <rect key="frame" x="237" y="283" width="60" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="Close" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058820000001" green="0.1176470588" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                </state>
+                                <state key="highlighted" backgroundImage="Button-Highlighted"/>
+                                <connections>
+                                    <action selector="close" destination="qjb-qI-Y3U" eventType="touchUpInside" id="6cx-hA-3Ci"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <viewLayoutGuide key="safeArea" id="qa3-Tu-Wqu"/>
+                    </view>
+                    <connections>
+                        <outlet property="webView" destination="QBm-r6-6cO" id="LaW-k8-Ezl"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="ibg-f5-i7u" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="934.85915492957747" y="112.5"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="Background" width="568" height="320"/>
+        <image name="Button-Highlighted" width="100" height="37"/>
+        <image name="Button-Normal" width="100" height="37"/>
+        <image name="InfoButton" width="10" height="22"/>
+        <image name="SmallButton" width="32" height="32"/>
+        <image name="StartOverIcon" width="20" height="20"/>
+    </resources>
+</document>
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..158b1cb
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha15/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,146 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        
+        
+        //更改滑动条的外观
+        let thumbImageNormal =  UIImage(named: "SliderThumb-Normal")!
+        slider.setThumbImage(thumbImageNormal, for: .normal)
+        
+        let thumbImageHighlighted = UIImage(named: "SliderThumb-Highlighted")!
+        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
+        
+        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
+        
+        let trackLeftImage = UIImage(named: "SliderTrackLeft")!
+        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
+        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
+        
+        let trackRightImage = UIImage(named: "SliderTrackRight")!
+        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
+        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
+        
+
+        
+        
+        //开启新的游戏回合
+       startNewGame()
+    }
+
+    @IBAction func showAlert(){
+        
+        //定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //计算玩家的当前得分
+        var points = 100 - difference
+        
+
+        
+        //设置标题的内容
+        let title: String
+        if difference == 0{
+            title = "运气逆天！赶紧去买注彩票吧！"
+            points += 100
+        }else if difference < 5 {
+            title = "太棒了！差一点就到了！"
+            if(difference == 1){
+                points += 50
+            }
+        }else if difference < 10 {
+            title = "很不错！继续努力！"
+            
+        }else {
+            title = "差太远了，君在长江头，我在长江尾~"
+        }
+        
+        //计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title: title,
+                                      message:message,
+            preferredStyle: .alert)
+        //更改了handler部分
+        let action = UIAlertAction(title:"OK",style: .default,
+                                   handler: { _ in
+                                                self.startNewRound()
+                                            })
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //重新来过按钮的触碰事件
+    @IBAction func startOver(){
+        
+        startNewGame()
+    }
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    //开启新的游戏
+    func startNewGame(){
+        
+        score = 0
+        round = 0
+        startNewRound()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100755
index 0000000..6df0772
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,366 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 51;
+	objects = {
+
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+		7842E93F21C88D1D00A37542 /* bgmusic.mp3 in Resources */ = {isa = PBXBuildFile; fileRef = 7842E93E21C88D1C00A37542 /* bgmusic.mp3 */; };
+		7842E94221C88EAD00A37542 /* AVFoundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7842E94121C88EAD00A37542 /* AVFoundation.framework */; };
+		DD09BA2120CE654E00720D6E /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD09BA2020CE654E00720D6E /* AppDelegate.swift */; };
+		DD09BA2320CE654E00720D6E /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD09BA2220CE654E00720D6E /* ViewController.swift */; };
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+		DD09BA2820CE654F00720D6E /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = DD09BA2720CE654F00720D6E /* Assets.xcassets */; };
+		DD09BA2B20CE654F00720D6E /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = DD09BA2920CE654F00720D6E /* LaunchScreen.storyboard */; };
+		DDC0BC4320D102F000926735 /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = DDC0BC4220D102F000926735 /* AboutViewController.swift */; };
+		DDC0BC4520D10BB600926735 /* BullsEye.html in Resources */ = {isa = PBXBuildFile; fileRef = DDC0BC4420D10BB600926735 /* BullsEye.html */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7842E93E21C88D1C00A37542 /* bgmusic.mp3 */ = {isa = PBXFileReference; lastKnownFileType = audio.mp3; path = bgmusic.mp3; sourceTree = "<group>"; };
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+		DD09BA1D20CE654E00720D6E /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		DD09BA2020CE654E00720D6E /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		DD09BA2220CE654E00720D6E /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
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+		DD09BA2720CE654F00720D6E /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		DD09BA2A20CE654F00720D6E /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		DD09BA2C20CE655000720D6E /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		DDC0BC4220D102F000926735 /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
+		DDC0BC4420D10BB600926735 /* BullsEye.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; path = BullsEye.html; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		DD09BA1A20CE654E00720D6E /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7842E94221C88EAD00A37542 /* AVFoundation.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7842E94021C88EAD00A37542 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				7842E94121C88EAD00A37542 /* AVFoundation.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
+		DD09BA1420CE654E00720D6E = {
+			isa = PBXGroup;
+			children = (
+				DD09BA1F20CE654E00720D6E /* BullsEye */,
+				DD09BA1E20CE654E00720D6E /* Products */,
+				7842E94021C88EAD00A37542 /* Frameworks */,
+			);
+			indentWidth = 2;
+			sourceTree = "<group>";
+			tabWidth = 2;
+			usesTabs = 0;
+		};
+		DD09BA1E20CE654E00720D6E /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				DD09BA1D20CE654E00720D6E /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		DD09BA1F20CE654E00720D6E /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				DDC0BC4420D10BB600926735 /* BullsEye.html */,
+				7842E93E21C88D1C00A37542 /* bgmusic.mp3 */,
+				DD09BA2020CE654E00720D6E /* AppDelegate.swift */,
+				DD09BA2220CE654E00720D6E /* ViewController.swift */,
+				DDC0BC4220D102F000926735 /* AboutViewController.swift */,
+				DD09BA2420CE654E00720D6E /* Main.storyboard */,
+				DD09BA2720CE654F00720D6E /* Assets.xcassets */,
+				DD09BA2920CE654F00720D6E /* LaunchScreen.storyboard */,
+				DD09BA2C20CE655000720D6E /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		DD09BA1C20CE654E00720D6E /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = DD09BA2F20CE655000720D6E /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				DD09BA1920CE654E00720D6E /* Sources */,
+				DD09BA1A20CE654E00720D6E /* Frameworks */,
+				DD09BA1B20CE654E00720D6E /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = DD09BA1D20CE654E00720D6E /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		DD09BA1520CE654E00720D6E /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1000;
+				LastUpgradeCheck = 1000;
+				ORGANIZATIONNAME = "Ray Wenderlich";
+				TargetAttributes = {
+					DD09BA1C20CE654E00720D6E = {
+						CreatedOnToolsVersion = 10.0;
+					};
+				};
+			};
+			buildConfigurationList = DD09BA1820CE654E00720D6E /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 10.0";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = DD09BA1420CE654E00720D6E;
+			productRefGroup = DD09BA1E20CE654E00720D6E /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				DD09BA1C20CE654E00720D6E /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		DD09BA1B20CE654E00720D6E /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7842E93F21C88D1D00A37542 /* bgmusic.mp3 in Resources */,
+				DD09BA2B20CE654F00720D6E /* LaunchScreen.storyboard in Resources */,
+				DDC0BC4520D10BB600926735 /* BullsEye.html in Resources */,
+				DD09BA2820CE654F00720D6E /* Assets.xcassets in Resources */,
+				DD09BA2620CE654E00720D6E /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
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+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				DDC0BC4320D102F000926735 /* AboutViewController.swift in Sources */,
+				DD09BA2320CE654E00720D6E /* ViewController.swift in Sources */,
+				DD09BA2120CE654E00720D6E /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			children = (
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+			);
+			name = Main.storyboard;
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+			isa = PBXVariantGroup;
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+				DD09BA2A20CE654F00720D6E /* Base */,
+			);
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+			sourceTree = "<group>";
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+/* End PBXVariantGroup section */
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+			isa = XCBuildConfiguration;
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+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
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+				CLANG_WARN_EMPTY_BODY = YES;
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+				CLANG_WARN_INFINITE_RECURSION = YES;
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+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
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+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
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+				ENABLE_TESTABILITY = YES;
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+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
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+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
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+		};
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+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
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+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		DD09BA3020CE655000720D6E /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		DD09BA3120CE655000720D6E /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		DD09BA1820CE654E00720D6E /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				DD09BA2D20CE655000720D6E /* Debug */,
+				DD09BA2E20CE655000720D6E /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		DD09BA2F20CE655000720D6E /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				DD09BA3020CE655000720D6E /* Debug */,
+				DD09BA3120CE655000720D6E /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = DD09BA1520CE654E00720D6E /* Project object */;
+}
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100644
new mode 100755
similarity index 100%
rename from iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100755
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..bc16778
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AboutViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AboutViewController.swift
new file mode 100755
index 0000000..24e5c16
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AboutViewController.swift	
@@ -0,0 +1,39 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+
+import UIKit
+import WebKit
+
+
+
+class AboutViewController: UIViewController {
+  @IBOutlet weak var webView: WKWebView!
+  
+  override func viewDidLoad() {
+    super.viewDidLoad()
+    /*使用准备好的网页
+    if let url = Bundle.main.url(forResource: "BullsEye",
+                               withExtension: "html") {
+      let request = URLRequest(url: url)
+      webView.load(request)
+    }
+     */
+    
+    //使用真实世界的网页
+    if let url = URL.init(string: "http://www.apple.com"){
+      let request = URLRequest(url: url)
+      webView.load(request)
+    }
+    
+  }
+  
+  @IBAction func close() {
+    dismiss(animated: true, completion: nil)
+  }
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AppDelegate.swift
new file mode 100755
index 0000000..7f70aca
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,45 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+  var window: UIWindow?
+
+  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+    // Override point for customization after application launch.
+    return true
+  }
+
+  func applicationWillResignActive(_ application: UIApplication) {
+    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+    // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+  }
+
+  func applicationDidEnterBackground(_ application: UIApplication) {
+    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+  }
+
+  func applicationWillEnterForeground(_ application: UIApplication) {
+    // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+  }
+
+  func applicationDidBecomeActive(_ application: UIApplication) {
+    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+  }
+
+  func applicationWillTerminate(_ application: UIApplication) {
+    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+  }
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100755
index 0000000..f36ace2
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-29.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-20.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-29.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-40.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-76.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-1024.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-20.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-20.png
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index 0000000..0b443c0
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diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-83.5@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-83.5@2x.png
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index 0000000..38d0beb
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diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Background.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Button-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Button-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/InfoButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Highlighted.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderThumb-Normal.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderTrackLeft.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SliderTrackRight.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/SmallButton.imageset/Contents.json
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
old mode 100644
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rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Assets.xcassets/StartOverIcon.imageset/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100755
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100755
index 0000000..4b90488
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,278 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina5_9" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="812" height="375"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="gOw-3L-DgT">
+                                <rect key="frame" x="0.0" y="0.0" width="812" height="375"/>
+                            </imageView>
+                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="jRl-MV-0Cv">
+                                <rect key="frame" x="122" y="26" width="568" height="323"/>
+                                <subviews>
+                                    <slider opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="Ewn-YW-ymX">
+                                        <rect key="frame" x="47" y="93" width="474" height="31"/>
+                                        <connections>
+                                            <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="qE6-aG-nw7"/>
+                                        </connections>
+                                    </slider>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="5je-zt-DHd">
+                                        <rect key="frame" x="20" y="99.333333333333329" width="25" height="17.666666666666671"/>
+                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                        <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <nil key="highlightedColor"/>
+                                        <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <size key="shadowOffset" width="0.0" height="1"/>
+                                    </label>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Zg0-Xv-AnB">
+                                        <rect key="frame" x="523" y="99.333333333333329" width="25" height="17.666666666666671"/>
+                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="14"/>
+                                        <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <nil key="highlightedColor"/>
+                                        <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <size key="shadowOffset" width="0.0" height="1"/>
+                                    </label>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="88S-R3-ILi">
+                                        <rect key="frame" x="20" y="271" width="32" height="32"/>
+                                        <constraints>
+                                            <constraint firstAttribute="width" constant="32" id="c0j-ac-6QQ"/>
+                                            <constraint firstAttribute="height" constant="32" id="tOm-Or-LgD"/>
+                                        </constraints>
+                                        <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
+                                        <connections>
+                                            <action selector="startNewGame" destination="BYZ-38-t0r" eventType="touchUpInside" id="eN0-0u-duD"/>
+                                        </connections>
+                                    </button>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="6FV-TD-1Ws">
+                                        <rect key="frame" x="516" y="271" width="32" height="32"/>
+                                        <constraints>
+                                            <constraint firstAttribute="height" constant="32" id="GXf-Rm-ZvL"/>
+                                            <constraint firstAttribute="width" constant="32" id="I73-le-wge"/>
+                                        </constraints>
+                                        <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
+                                        <connections>
+                                            <segue destination="Tqt-8U-k96" kind="presentation" modalTransitionStyle="flipHorizontal" id="1Xi-ou-fTl"/>
+                                        </connections>
+                                    </button>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="3SS-lw-YQQ">
+                                        <rect key="frame" x="182" y="20" width="204" height="24"/>
+                                        <subviews>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="让靶心尽可能的接近：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="1i5-Pj-r9X">
+                                                <rect key="frame" x="0.0" y="2" width="160" height="20"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Xi1-Ih-ihS">
+                                                <rect key="frame" x="168" y="0.0" width="36" height="24"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                        </subviews>
+                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstItem="Xi1-Ih-ihS" firstAttribute="leading" secondItem="1i5-Pj-r9X" secondAttribute="trailing" constant="8" id="I6i-4O-L0F"/>
+                                            <constraint firstItem="1i5-Pj-r9X" firstAttribute="centerY" secondItem="Xi1-Ih-ihS" secondAttribute="centerY" id="JKt-TJ-IJj"/>
+                                            <constraint firstItem="1i5-Pj-r9X" firstAttribute="leading" secondItem="3SS-lw-YQQ" secondAttribute="leading" id="jV0-wo-MKz"/>
+                                            <constraint firstAttribute="bottom" secondItem="Xi1-Ih-ihS" secondAttribute="bottom" id="pHg-88-Wup"/>
+                                            <constraint firstItem="Xi1-Ih-ihS" firstAttribute="top" secondItem="3SS-lw-YQQ" secondAttribute="top" id="r86-ZU-Xih"/>
+                                            <constraint firstAttribute="trailing" secondItem="Xi1-Ih-ihS" secondAttribute="trailing" id="xBC-8N-rZh"/>
+                                        </constraints>
+                                    </view>
+                                    <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="A5d-qr-fF6">
+                                        <rect key="frame" x="144" y="274.66666666666669" width="280" height="25"/>
+                                        <subviews>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="BKe-bC-Elw">
+                                                <rect key="frame" x="0.0" y="2.3333333333333144" width="48" height="20"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="4dm-uC-eWu">
+                                                <rect key="frame" x="56" y="0.0" width="72" height="25"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pW1-gc-hxP">
+                                                <rect key="frame" x="188" y="2.3333333333333144" width="48" height="20"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zP3-hy-bsF">
+                                                <rect key="frame" x="244" y="0.0" width="36" height="25"/>
+                                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <nil key="highlightedColor"/>
+                                                <color key="shadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                <size key="shadowOffset" width="0.0" height="1"/>
+                                            </label>
+                                        </subviews>
+                                        <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <constraints>
+                                            <constraint firstItem="BKe-bC-Elw" firstAttribute="leading" secondItem="A5d-qr-fF6" secondAttribute="leading" id="40a-iV-fvq"/>
+                                            <constraint firstItem="4dm-uC-eWu" firstAttribute="leading" secondItem="BKe-bC-Elw" secondAttribute="trailing" constant="8" id="9Kx-8g-dLb"/>
+                                            <constraint firstItem="zP3-hy-bsF" firstAttribute="leading" secondItem="pW1-gc-hxP" secondAttribute="trailing" constant="8" id="9ib-qQ-cRa"/>
+                                            <constraint firstAttribute="bottom" secondItem="zP3-hy-bsF" secondAttribute="bottom" id="AO1-hd-zcW"/>
+                                            <constraint firstItem="pW1-gc-hxP" firstAttribute="leading" secondItem="4dm-uC-eWu" secondAttribute="trailing" constant="60" id="Av2-SK-VZu"/>
+                                            <constraint firstItem="4dm-uC-eWu" firstAttribute="top" secondItem="A5d-qr-fF6" secondAttribute="top" id="HrX-5r-gnL"/>
+                                            <constraint firstItem="zP3-hy-bsF" firstAttribute="top" secondItem="A5d-qr-fF6" secondAttribute="top" id="IIJ-m4-WtR"/>
+                                            <constraint firstAttribute="bottom" secondItem="4dm-uC-eWu" secondAttribute="bottom" id="Imz-Rw-a2E"/>
+                                            <constraint firstItem="pW1-gc-hxP" firstAttribute="centerY" secondItem="zP3-hy-bsF" secondAttribute="centerY" id="PL1-0j-zTi"/>
+                                            <constraint firstAttribute="trailing" secondItem="zP3-hy-bsF" secondAttribute="trailing" id="eej-X3-uek"/>
+                                            <constraint firstItem="BKe-bC-Elw" firstAttribute="centerY" secondItem="4dm-uC-eWu" secondAttribute="centerY" id="ehU-FQ-0Ah"/>
+                                        </constraints>
+                                    </view>
+                                    <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LMD-zE-t25">
+                                        <rect key="frame" x="234" y="143" width="100" height="37"/>
+                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
+                                        <size key="titleShadowOffset" width="0.0" height="1"/>
+                                        <state key="normal" title="决定了！" backgroundImage="Button-Normal">
+                                            <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                            <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="calibratedRGB"/>
+                                        </state>
+                                        <state key="highlighted" backgroundImage="Button-Highlighted">
+                                            <color key="titleShadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        </state>
+                                        <connections>
+                                            <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="4PM-TG-AnY"/>
+                                        </connections>
+                                    </button>
+                                </subviews>
+                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <constraints>
+                                    <constraint firstItem="Ewn-YW-ymX" firstAttribute="leading" secondItem="5je-zt-DHd" secondAttribute="trailing" constant="4" id="2y0-Na-JdP"/>
+                                    <constraint firstItem="LMD-zE-t25" firstAttribute="top" secondItem="Ewn-YW-ymX" secondAttribute="bottom" constant="20" id="AI0-E9-uQz"/>
+                                    <constraint firstAttribute="bottom" secondItem="88S-R3-ILi" secondAttribute="bottom" constant="20" id="HrD-cw-7bo"/>
+                                    <constraint firstAttribute="height" constant="323" id="IGH-fH-n05"/>
+                                    <constraint firstItem="Zg0-Xv-AnB" firstAttribute="leading" secondItem="Ewn-YW-ymX" secondAttribute="trailing" constant="4" id="Ig4-wQ-XNd"/>
+                                    <constraint firstAttribute="width" constant="568" id="KX3-oI-haz"/>
+                                    <constraint firstAttribute="trailing" secondItem="6FV-TD-1Ws" secondAttribute="trailing" constant="20" id="NmW-O7-XbD"/>
+                                    <constraint firstAttribute="trailing" secondItem="Zg0-Xv-AnB" secondAttribute="trailing" constant="20" id="QKJ-qV-pjd"/>
+                                    <constraint firstItem="3SS-lw-YQQ" firstAttribute="top" secondItem="jRl-MV-0Cv" secondAttribute="top" constant="20" id="TQw-CB-87N"/>
+                                    <constraint firstAttribute="bottom" secondItem="6FV-TD-1Ws" secondAttribute="bottom" constant="20" id="bFp-ZD-FsX"/>
+                                    <constraint firstItem="3SS-lw-YQQ" firstAttribute="centerX" secondItem="jRl-MV-0Cv" secondAttribute="centerX" id="cEK-Uc-Qw7"/>
+                                    <constraint firstItem="LMD-zE-t25" firstAttribute="centerY" secondItem="jRl-MV-0Cv" secondAttribute="centerY" id="d0c-m7-OxV"/>
+                                    <constraint firstItem="LMD-zE-t25" firstAttribute="centerX" secondItem="jRl-MV-0Cv" secondAttribute="centerX" id="dMJ-t6-nf2"/>
+                                    <constraint firstItem="Ewn-YW-ymX" firstAttribute="centerX" secondItem="jRl-MV-0Cv" secondAttribute="centerX" id="m7I-Z6-50f"/>
+                                    <constraint firstItem="A5d-qr-fF6" firstAttribute="centerX" secondItem="jRl-MV-0Cv" secondAttribute="centerX" id="mrq-Qc-wSH"/>
+                                    <constraint firstItem="Zg0-Xv-AnB" firstAttribute="centerY" secondItem="Ewn-YW-ymX" secondAttribute="centerY" id="qAv-7H-1kf"/>
+                                    <constraint firstItem="88S-R3-ILi" firstAttribute="leading" secondItem="jRl-MV-0Cv" secondAttribute="leading" constant="20" id="qdc-GP-STQ"/>
+                                    <constraint firstItem="5je-zt-DHd" firstAttribute="centerY" secondItem="Ewn-YW-ymX" secondAttribute="centerY" id="rEv-Yk-C2D"/>
+                                    <constraint firstItem="5je-zt-DHd" firstAttribute="leading" secondItem="jRl-MV-0Cv" secondAttribute="leading" constant="20" id="wDT-Xz-14e"/>
+                                    <constraint firstItem="A5d-qr-fF6" firstAttribute="centerY" secondItem="88S-R3-ILi" secondAttribute="centerY" id="xAU-zP-dgY"/>
+                                </constraints>
+                            </view>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="jRl-MV-0Cv" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="JBk-CK-Kvn"/>
+                            <constraint firstItem="jRl-MV-0Cv" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="PhN-Ds-euf"/>
+                            <constraint firstAttribute="bottom" secondItem="gOw-3L-DgT" secondAttribute="bottom" id="ot4-7A-zGZ"/>
+                            <constraint firstAttribute="trailing" secondItem="gOw-3L-DgT" secondAttribute="trailing" id="rUj-dq-mKP"/>
+                            <constraint firstItem="gOw-3L-DgT" firstAttribute="top" secondItem="8bC-Xf-vdC" secondAttribute="top" id="uEQ-fP-fNd"/>
+                            <constraint firstItem="gOw-3L-DgT" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="zVr-5z-hq6"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="zP3-hy-bsF" id="x0H-Qd-8zZ"/>
+                        <outlet property="scoreLabel" destination="4dm-uC-eWu" id="3xf-EB-BJt"/>
+                        <outlet property="slider" destination="Ewn-YW-ymX" id="5Cn-sy-tpK"/>
+                        <outlet property="targetLabel" destination="Xi1-Ih-ihS" id="8Ua-G6-5LT"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-50.246305418719217" y="32.799999999999997"/>
+        </scene>
+        <!--About View Controller-->
+        <scene sceneID="se7-J0-Laa">
+            <objects>
+                <viewController id="Tqt-8U-k96" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="9uS-Rm-qHU">
+                        <rect key="frame" x="0.0" y="0.0" width="812" height="375"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="Jrb-Ra-iVK">
+                                <rect key="frame" x="44" y="0.0" width="724" height="354"/>
+                            </imageView>
+                            <wkWebView contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Vzo-9o-Kdr">
+                                <rect key="frame" x="64" y="20" width="684" height="269"/>
+                                <color key="backgroundColor" red="0.36078431370000003" green="0.38823529410000002" blue="0.4039215686" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                                <wkWebViewConfiguration key="configuration">
+                                    <audiovisualMediaTypes key="mediaTypesRequiringUserActionForPlayback" none="YES"/>
+                                    <wkPreferences key="preferences"/>
+                                </wkWebViewConfiguration>
+                            </wkWebView>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="KTF-eo-hKt">
+                                <rect key="frame" x="356" y="297" width="100" height="37"/>
+                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="17"/>
+                                <size key="titleShadowOffset" width="0.0" height="1"/>
+                                <state key="normal" title="Close" backgroundImage="Button-Normal">
+                                    <color key="titleColor" red="0.37647058820000001" green="0.1176470588" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                    <color key="titleShadowColor" white="0.0" alpha="0.5" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                </state>
+                                <connections>
+                                    <action selector="close" destination="Tqt-8U-k96" eventType="touchUpInside" id="8wD-W3-THx"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="Z5d-Ke-Reh" firstAttribute="trailing" secondItem="Jrb-Ra-iVK" secondAttribute="trailing" id="5cZ-7O-qpr"/>
+                            <constraint firstItem="Vzo-9o-Kdr" firstAttribute="top" secondItem="Z5d-Ke-Reh" secondAttribute="top" constant="20" id="Cs5-lE-bec"/>
+                            <constraint firstItem="KTF-eo-hKt" firstAttribute="centerX" secondItem="9uS-Rm-qHU" secondAttribute="centerX" id="M9c-aJ-CJ3"/>
+                            <constraint firstItem="Z5d-Ke-Reh" firstAttribute="trailing" secondItem="Vzo-9o-Kdr" secondAttribute="trailing" constant="20" id="NPE-fp-SLv"/>
+                            <constraint firstItem="Jrb-Ra-iVK" firstAttribute="leading" secondItem="Z5d-Ke-Reh" secondAttribute="leading" id="d4t-i8-MxO"/>
+                            <constraint firstItem="Z5d-Ke-Reh" firstAttribute="bottom" secondItem="Jrb-Ra-iVK" secondAttribute="bottom" id="e53-JN-KEt"/>
+                            <constraint firstItem="KTF-eo-hKt" firstAttribute="top" secondItem="Vzo-9o-Kdr" secondAttribute="bottom" constant="8" id="mCB-WT-JGd"/>
+                            <constraint firstItem="Z5d-Ke-Reh" firstAttribute="bottom" secondItem="KTF-eo-hKt" secondAttribute="bottom" constant="20" id="nAh-0I-Z0F"/>
+                            <constraint firstItem="Vzo-9o-Kdr" firstAttribute="leading" secondItem="Z5d-Ke-Reh" secondAttribute="leading" constant="20" id="o32-fS-EES"/>
+                            <constraint firstItem="Jrb-Ra-iVK" firstAttribute="top" secondItem="Z5d-Ke-Reh" secondAttribute="top" id="qCc-Xj-Pd9"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="Z5d-Ke-Reh"/>
+                    </view>
+                    <connections>
+                        <outlet property="webView" destination="Vzo-9o-Kdr" id="KI1-95-NZN"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="GIg-bf-0R7" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="667.6056338028169" y="33.75"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="Background" width="568" height="320"/>
+        <image name="Button-Highlighted" width="100" height="37"/>
+        <image name="Button-Normal" width="100" height="37"/>
+        <image name="InfoButton" width="10" height="22"/>
+        <image name="SmallButton" width="32" height="32"/>
+        <image name="StartOverIcon" width="20" height="20"/>
+    </resources>
+</document>
diff --git a/iOS11/Projects/Resources/BullsEye.html b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/BullsEye.html
old mode 100644
new mode 100755
similarity index 100%
rename from iOS11/Projects/Resources/BullsEye.html
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/BullsEye.html
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Info.plist
old mode 100644
new mode 100755
similarity index 100%
rename from iOS11/Projects/cha16/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/ViewController.swift
new file mode 100755
index 0000000..7da7918
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,165 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+
+import UIKit
+
+//导入音频框架
+import AVFoundation
+
+class ViewController: UIViewController {
+  
+  //定义了一个outlet类型的slider变量
+  @IBOutlet weak var slider: UISlider!
+  
+  //定义了一个outlet类型的label变量
+  @IBOutlet weak var targetLabel: UILabel!
+  
+  //定义了用来显示玩家总得分的outlet 标签变量
+  @IBOutlet weak var scoreLabel: UILabel!
+  
+  //定义了用来显示游戏回合数的outlet 标签变量
+  @IBOutlet weak var roundLabel: UILabel!
+  
+  //定义一个音频播放器变量
+  var audioPlayer: AVAudioPlayer!
+  
+  var currentValue = 0
+  var targetValue = 0
+  var score = 0
+  var round = 0
+  
+  override func viewDidLoad() {
+    super.viewDidLoad()
+    
+    //更改滑动条的外观
+    let thumbImageNormal =  UIImage(named: "SliderThumb-Normal")!
+    slider.setThumbImage(thumbImageNormal, for: .normal)
+    
+    let thumbImageHighlighted = UIImage(named: "SliderThumb-Highlighted")!
+    slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
+    
+    let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
+    
+    let trackLeftImage = UIImage(named: "SliderTrackLeft")!
+    let trackLeftResizable =
+      trackLeftImage.resizableImage(withCapInsets: insets)
+    slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
+    
+    let trackRightImage = UIImage(named: "SliderTrackRight")!
+    let trackRightResizable =
+      trackRightImage.resizableImage(withCapInsets: insets)
+    slider.setMaximumTrackImage(trackRightResizable, for: .normal)
+    
+    //开启新的游戏回合
+    startNewGame()
+    
+    //播放背景音乐
+    playBgMusic()
+  }
+  
+  @IBAction func showAlert() {
+    
+     //定义一个用来保存差值的变量，并使用新的算法计算差值
+    let difference = abs(targetValue - currentValue)
+    
+    //计算玩家的当前得分
+    var points = 100 - difference
+    
+    
+    //设置标题的内容
+    let title: String
+    if difference == 0 {
+      title = "运气逆天！赶紧去买注彩票吧!"
+      points += 100
+    } else if difference < 5 {
+      title = "太棒了！差一点就到了！"
+      if difference == 1 {
+        points += 50
+      }
+    } else if difference < 10 {
+      title = "很不错！继续努力！"
+    } else {
+      title = "差太远了，君在长江头，我在长江尾~"
+    }
+    
+    //计算玩家的总得分
+    score += points
+    
+    //设置消息体的内容
+    let message = "您的得分是： \(points) 分"
+    
+    let alert = UIAlertController(title: title,
+                                message: message,
+                         preferredStyle: .alert)
+    
+    let action = UIAlertAction(title: "OK", style: .default,
+                             handler: { _ in
+                              self.startNewRound()
+                             })
+    
+    alert.addAction(action)
+    
+    //显示提示信息
+    present(alert, animated: true, completion: nil)
+  }
+  
+  @IBAction func sliderMoved(_ slider: UISlider) {
+    currentValue = lroundf(slider.value)
+  }
+  
+  @IBAction func startNewGame() {
+    score = 0
+    round = 0
+    startNewRound()
+    
+    //设置动态过渡效果
+    let transition = CATransition()
+    transition.type = CATransitionType.fade
+    transition.duration = 1
+    transition.timingFunction = CAMediaTimingFunction(name:
+      CAMediaTimingFunctionName.easeOut)
+    view.layer.add(transition, forKey: nil)
+  }
+  
+  func startNewRound() {
+    round += 1
+    targetValue = Int.random(in: 1...100)
+    currentValue = 50
+    slider.value = Float(currentValue)
+    updateLabels()
+  }
+  
+  func updateLabels() {
+    targetLabel.text = String(targetValue)
+    scoreLabel.text = String(score)
+    roundLabel.text = String(round)
+  }
+  
+  
+  func playBgMusic(){
+    
+    let musicPath = Bundle.main.path(forResource: "bgmusic", ofType: "mp3")
+    let url = URL.init(fileURLWithPath: musicPath!)
+    
+    do{
+      audioPlayer = try AVAudioPlayer(contentsOf: url)
+    }catch _ {
+      audioPlayer = nil
+    }
+    
+    //设置播放选项
+    audioPlayer.numberOfLoops = -1
+    audioPlayer.prepareToPlay()
+    audioPlayer.play()
+    
+  }
+  
+  
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/bgmusic.mp3 b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/bgmusic.mp3
new file mode 100644
index 0000000..99149f6
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha16/BullsEye/BullsEye/bgmusic.mp3 differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..14ef387
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78A5999B21B6183600B5F2BC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A5999A21B6183600B5F2BC /* AppDelegate.swift */; };
+		78A5999D21B6183600B5F2BC /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A5999C21B6183600B5F2BC /* ViewController.swift */; };
+		78A599A021B6183600B5F2BC /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78A5999E21B6183600B5F2BC /* Main.storyboard */; };
+		78A599A221B6183800B5F2BC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78A599A121B6183800B5F2BC /* Assets.xcassets */; };
+		78A599A521B6183800B5F2BC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78A5999721B6183600B5F2BC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78A5999A21B6183600B5F2BC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78A5999C21B6183600B5F2BC /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		78A5999F21B6183600B5F2BC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78A599A121B6183800B5F2BC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78A599A421B6183800B5F2BC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78A599A621B6183800B5F2BC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78A5999421B6183600B5F2BC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78A5998E21B6183600B5F2BC = {
+			isa = PBXGroup;
+			children = (
+				78A5999921B6183600B5F2BC /* BullsEye */,
+				78A5999821B6183600B5F2BC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78A5999821B6183600B5F2BC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78A5999721B6183600B5F2BC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78A5999921B6183600B5F2BC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				78A5999A21B6183600B5F2BC /* AppDelegate.swift */,
+				78A5999C21B6183600B5F2BC /* ViewController.swift */,
+				78A5999E21B6183600B5F2BC /* Main.storyboard */,
+				78A599A121B6183800B5F2BC /* Assets.xcassets */,
+				78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */,
+				78A599A621B6183800B5F2BC /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78A5999621B6183600B5F2BC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78A599A921B6183800B5F2BC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				78A5999321B6183600B5F2BC /* Sources */,
+				78A5999421B6183600B5F2BC /* Frameworks */,
+				78A5999521B6183600B5F2BC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 78A5999721B6183600B5F2BC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78A5998F21B6183600B5F2BC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					78A5999621B6183600B5F2BC = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78A5999221B6183600B5F2BC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78A5998E21B6183600B5F2BC;
+			productRefGroup = 78A5999821B6183600B5F2BC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78A5999621B6183600B5F2BC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78A5999521B6183600B5F2BC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78A599A521B6183800B5F2BC /* LaunchScreen.storyboard in Resources */,
+				78A599A221B6183800B5F2BC /* Assets.xcassets in Resources */,
+				78A599A021B6183600B5F2BC /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78A5999321B6183600B5F2BC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78A5999D21B6183600B5F2BC /* ViewController.swift in Sources */,
+				78A5999B21B6183600B5F2BC /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78A5999E21B6183600B5F2BC /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78A5999F21B6183600B5F2BC /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78A599A421B6183800B5F2BC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78A599A721B6183800B5F2BC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
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+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
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+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78A599A821B6183800B5F2BC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78A599AA21B6183800B5F2BC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78A599AB21B6183800B5F2BC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78A5999221B6183600B5F2BC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78A599A721B6183800B5F2BC /* Debug */,
+				78A599A821B6183800B5F2BC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78A599A921B6183800B5F2BC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78A599AA21B6183800B5F2BC /* Debug */,
+				78A599AB21B6183800B5F2BC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78A5998F21B6183600B5F2BC /* Project object */;
+}
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..842d0fa
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..51723ec
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/4/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Assets.xcassets/Contents.json
similarity index 100%
rename from iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/Contents.json
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Assets.xcassets/Contents.json
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..99e1954
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="O3a-Hz-yze">
+                                <rect key="frame" x="91" y="257" width="123" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="王师傅宽油大法好"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="gSH-H8-ljc"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha2/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..a75ef6b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha2/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,28 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/4/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    @IBAction func showAlert(){
+        
+        let alert = UIAlertController(title: "把油桶踢过来", message: "看王师傅教你做正宗的四川麻婆豆腐", preferredStyle:  .alert)
+        let action = UIAlertAction(title: "2019年要跟着学几个拿手菜", style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+    }
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..14ef387
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78A5999B21B6183600B5F2BC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A5999A21B6183600B5F2BC /* AppDelegate.swift */; };
+		78A5999D21B6183600B5F2BC /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A5999C21B6183600B5F2BC /* ViewController.swift */; };
+		78A599A021B6183600B5F2BC /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78A5999E21B6183600B5F2BC /* Main.storyboard */; };
+		78A599A221B6183800B5F2BC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78A599A121B6183800B5F2BC /* Assets.xcassets */; };
+		78A599A521B6183800B5F2BC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78A5999721B6183600B5F2BC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78A5999A21B6183600B5F2BC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78A5999C21B6183600B5F2BC /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		78A5999F21B6183600B5F2BC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78A599A121B6183800B5F2BC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78A599A421B6183800B5F2BC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78A599A621B6183800B5F2BC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78A5999421B6183600B5F2BC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78A5998E21B6183600B5F2BC = {
+			isa = PBXGroup;
+			children = (
+				78A5999921B6183600B5F2BC /* BullsEye */,
+				78A5999821B6183600B5F2BC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78A5999821B6183600B5F2BC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78A5999721B6183600B5F2BC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78A5999921B6183600B5F2BC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				78A5999A21B6183600B5F2BC /* AppDelegate.swift */,
+				78A5999C21B6183600B5F2BC /* ViewController.swift */,
+				78A5999E21B6183600B5F2BC /* Main.storyboard */,
+				78A599A121B6183800B5F2BC /* Assets.xcassets */,
+				78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */,
+				78A599A621B6183800B5F2BC /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78A5999621B6183600B5F2BC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78A599A921B6183800B5F2BC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				78A5999321B6183600B5F2BC /* Sources */,
+				78A5999421B6183600B5F2BC /* Frameworks */,
+				78A5999521B6183600B5F2BC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 78A5999721B6183600B5F2BC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78A5998F21B6183600B5F2BC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					78A5999621B6183600B5F2BC = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78A5999221B6183600B5F2BC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78A5998E21B6183600B5F2BC;
+			productRefGroup = 78A5999821B6183600B5F2BC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78A5999621B6183600B5F2BC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78A5999521B6183600B5F2BC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78A599A521B6183800B5F2BC /* LaunchScreen.storyboard in Resources */,
+				78A599A221B6183800B5F2BC /* Assets.xcassets in Resources */,
+				78A599A021B6183600B5F2BC /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78A5999321B6183600B5F2BC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78A5999D21B6183600B5F2BC /* ViewController.swift in Sources */,
+				78A5999B21B6183600B5F2BC /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78A5999E21B6183600B5F2BC /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78A5999F21B6183600B5F2BC /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78A599A321B6183800B5F2BC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78A599A421B6183800B5F2BC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78A599A721B6183800B5F2BC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78A599A821B6183800B5F2BC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78A599AA21B6183800B5F2BC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78A599AB21B6183800B5F2BC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78A5999221B6183600B5F2BC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78A599A721B6183800B5F2BC /* Debug */,
+				78A599A821B6183800B5F2BC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78A599A921B6183800B5F2BC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78A599AA21B6183800B5F2BC /* Debug */,
+				78A599AB21B6183800B5F2BC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78A5998F21B6183600B5F2BC /* Project object */;
+}
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..9b6f86a
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..51723ec
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/4/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..a2740c2
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="O3a-Hz-yze">
+                                <rect key="frame" x="223" y="145" width="123" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="王师傅宽油大法好"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="gSH-H8-ljc"/>
+                                </connections>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha3/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..a75ef6b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha3/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,28 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 12/4/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    @IBAction func showAlert(){
+        
+        let alert = UIAlertController(title: "把油桶踢过来", message: "看王师傅教你做正宗的四川麻婆豆腐", preferredStyle:  .alert)
+        let action = UIAlertAction(title: "2019年要跟着学几个拿手菜", style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+    }
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..17ea518
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..beacdd7
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="轮次：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha4/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..4ef8449
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha4/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,35 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    
+    var currentValue: Int = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    @IBAction func showAlert(){
+        
+        let alert = UIAlertController(title:"把油桶踢过来",
+                                      message:"看王师傅教你做正宗的四川麻婆豆腐",
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"2019年要跟着学几个拿手菜",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+        print("滑动条的当前数值是： \(slider.value)")
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
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+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
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+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
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+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
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+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
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+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
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+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
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+				CLANG_ENABLE_OBJC_ARC = YES;
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+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
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+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..b4fe520
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..beacdd7
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="轮次：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha5/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..270d4ca
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha5/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,38 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    
+    var currentValue: Int = 50
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    @IBAction func showAlert(){
+        
+        let message = "滑动条的当前数值是： \(currentValue)"
+        
+        let alert = UIAlertController(title:"把油桶踢过来",
+                                      message:message,
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"2019年要跟着学几个拿手菜",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        currentValue = lroundf(slider.value)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
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+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
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+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..fd09281
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..33fbd50
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="轮次：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha6/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..2644795
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha6/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,41 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //1.定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    
+    var currentValue: Int = 50
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        currentValue = lroundf(slider.value)
+    }
+
+    @IBAction func showAlert(){
+        
+        let message = "滑动条的当前数值是： \(currentValue)"
+        
+        let alert = UIAlertController(title:"把油桶踢过来",
+                                      message:message,
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"2019年要跟着学几个拿手菜",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        currentValue = lroundf(slider.value)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
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+			);
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+			productName = BullsEye;
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+				CLANG_WARN_ENUM_CONVERSION = YES;
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+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
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+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..c49203e
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..0729051
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="轮次：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha7/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..b4b77c0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha7/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,61 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //1.定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //3.定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+       startNewRound()
+    }
+
+    @IBAction func showAlert(){
+        
+        let message = "滑动条的当前数值是： \(currentValue)" + "\n目标数值是： \(targetValue)"
+        
+        let alert = UIAlertController(title:"把油桶踢过来",
+                                      message:message,
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"2019年要跟着学几个拿手菜",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+        
+        startNewRound()
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        currentValue = lroundf(slider.value)
+    }
+    
+    func startNewRound(){
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		7896116E21B0003C002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		7896117021B0003D002C0A61 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
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+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
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+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		7896117721B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..eef4279
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..0729051
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="轮次：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha8/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..d6611f7
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha8/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,74 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //1.定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //3.定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+       startNewRound()
+    }
+
+    @IBAction func showAlert(){
+        
+        //1.定义y一个用来保存差值的变量
+        var difference: Int
+        //2.计算差值的具体数值
+        if currentValue > targetValue {
+            
+            difference = currentValue - targetValue
+        }else if targetValue > currentValue {
+            
+            difference = targetValue - currentValue
+        }else{
+            difference = 0
+        }
+        //3.设置消息体的内容
+        let message = "滑动条的当前数值是： \(currentValue)" + "\n目标数值是： \(targetValue)" + "\n两者的差值是: \(difference)"
+        
+        let alert = UIAlertController(title:"科瓦奇您好",
+                                      message:message,
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"OK",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        present(alert, animated: true, completion: nil)
+        
+        startNewRound()
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        currentValue = lroundf(slider.value)
+    }
+    
+    func startNewRound(){
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..e1ef603
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,339 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116921B0003C002C0A61 /* AppDelegate.swift */; };
+		7896116C21B0003C002C0A61 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7896116B21B0003C002C0A61 /* ViewController.swift */; };
+		7896116F21B0003C002C0A61 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896116D21B0003C002C0A61 /* Main.storyboard */; };
+		7896117121B0003D002C0A61 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 7896117021B0003D002C0A61 /* Assets.xcassets */; };
+		7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 7896117221B0003D002C0A61 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		7896116621B0003C002C0A61 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		7896116921B0003C002C0A61 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		7896116B21B0003C002C0A61 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
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+		7896117321B0003D002C0A61 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		7896117521B0003D002C0A61 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		7896116321B0003C002C0A61 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		7896115D21B0003C002C0A61 = {
+			isa = PBXGroup;
+			children = (
+				7896116821B0003C002C0A61 /* BullsEye */,
+				7896116721B0003C002C0A61 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		7896116721B0003C002C0A61 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				7896116621B0003C002C0A61 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		7896116821B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				7896116921B0003C002C0A61 /* AppDelegate.swift */,
+				7896116B21B0003C002C0A61 /* ViewController.swift */,
+				7896116D21B0003C002C0A61 /* Main.storyboard */,
+				7896117021B0003D002C0A61 /* Assets.xcassets */,
+				7896117221B0003D002C0A61 /* LaunchScreen.storyboard */,
+				7896117521B0003D002C0A61 /* Info.plist */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		7896116521B0003C002C0A61 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				7896116221B0003C002C0A61 /* Sources */,
+				7896116321B0003C002C0A61 /* Frameworks */,
+				7896116421B0003C002C0A61 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 7896116621B0003C002C0A61 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		7896115E21B0003C002C0A61 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = eseedo;
+				TargetAttributes = {
+					7896116521B0003C002C0A61 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 7896115D21B0003C002C0A61;
+			productRefGroup = 7896116721B0003C002C0A61 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				7896116521B0003C002C0A61 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		7896116421B0003C002C0A61 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896117421B0003D002C0A61 /* LaunchScreen.storyboard in Resources */,
+				7896117121B0003D002C0A61 /* Assets.xcassets in Resources */,
+				7896116F21B0003C002C0A61 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		7896116221B0003C002C0A61 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				7896116C21B0003C002C0A61 /* ViewController.swift in Sources */,
+				7896116A21B0003C002C0A61 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		7896116D21B0003C002C0A61 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896116E21B0003C002C0A61 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		7896117221B0003D002C0A61 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				7896117321B0003D002C0A61 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		7896117621B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
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+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
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+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
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+				);
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+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
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+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
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+				GCC_NO_COMMON_BLOCKS = YES;
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+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
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+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
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+			name = Release;
+		};
+		7896117921B0003D002C0A61 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		7896117A21B0003D002C0A61 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		7896116121B0003C002C0A61 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117621B0003D002C0A61 /* Debug */,
+				7896117721B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		7896117821B0003D002C0A61 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				7896117921B0003D002C0A61 /* Debug */,
+				7896117A21B0003D002C0A61 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 7896115E21B0003C002C0A61 /* Project object */;
+}
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..f67c7ab
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..903d551
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..d278b88
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard	
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_0" orientation="landscape">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="b2e-d5-yf4">
+                                <rect key="frame" x="254" y="158" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="宽油劝退"/>
+                                <connections>
+                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="Soj-Vy-4hk"/>
+                                </connections>
+                            </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="拖动滑动条让它尽可能的接近" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Udb-KQ-fQu">
+                                <rect key="frame" x="120" y="49" width="226" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ofm-bw-f0x">
+                                <rect key="frame" x="368" y="49" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="D1p-Ri-IbJ">
+                                <rect key="frame" x="66" y="103" width="8" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pyD-Uy-tUe">
+                                <rect key="frame" x="475" y="102" width="29" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="得分：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="nXO-DB-6lF">
+                                <rect key="frame" x="103" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="9999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="aYN-RV-0ja">
+                                <rect key="frame" x="163" y="222" width="74" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="回合：" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h3b-Hn-3Ro">
+                                <rect key="frame" x="304" y="223" width="52" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2Mk-8n-Qj4">
+                                <rect key="frame" x="390" y="223" width="32" height="21"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <nil key="textColor"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LXs-Aw-WDD">
+                                <rect key="frame" x="497" y="222" width="22" height="22"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </button>
+                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="RVI-rV-y5t">
+                                <rect key="frame" x="101" y="99" width="351" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <connections>
+                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="C0N-JO-YTM"/>
+                                </connections>
+                            </slider>
+                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="64i-BE-HTR">
+                                <rect key="frame" x="20" y="219" width="62" height="30"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                <state key="normal" title="重新来过"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="roundLabel" destination="2Mk-8n-Qj4" id="yWD-CO-gUx"/>
+                        <outlet property="scoreLabel" destination="aYN-RV-0ja" id="SDG-dg-fob"/>
+                        <outlet property="slider" destination="RVI-rV-y5t" id="TvW-qI-VV3"/>
+                        <outlet property="targetLabel" destination="ofm-bw-f0x" id="qty-4l-r9t"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="132.04225352112675" y="112.5"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Info.plist
similarity index 100%
rename from iOS11/Projects/cha9/BullsEye/BullsEye/Info.plist
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/Info.plist
diff --git a/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/ViewController.swift b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/ViewController.swift
new file mode 100644
index 0000000..8482f30
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Cha9/BullsEye/BullsEye/ViewController.swift	
@@ -0,0 +1,90 @@
+//
+//  ViewController.swift
+//  BullsEye
+//
+//  Created by eseedo on 11/29/18.
+//  Copyright © 2018 eseedo. All rights reserved.
+//
+
+import UIKit
+
+class ViewController: UIViewController {
+    //定义了一个outlet类型的slider变量
+    @IBOutlet weak var slider: UISlider!
+    //定义了一个outlet类型的label变量
+    @IBOutlet weak var targetLabel: UILabel!
+    
+    //定义了用来显示玩家总得分的outlet 标签变量
+    @IBOutlet weak var scoreLabel: UILabel!
+    
+    //定义了用来显示游戏回合数的outlet 标签变量
+    @IBOutlet weak var roundLabel: UILabel!
+    
+    var currentValue: Int = 50
+    var targetValue: Int = 0
+    var score = 0
+    var round = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        //开启新的游戏回合
+       startNewRound()
+    }
+
+    @IBAction func showAlert(){
+        
+        //1.定义一个用来保存差值的变量，并使用新的算法计算差值
+       
+        let difference = abs(targetValue - currentValue)
+        
+        //2.计算玩家的当前得分
+        let points = 100 - difference
+        
+        //3.计算玩家的总得分
+        score += points
+        
+        //设置消息体的内容
+        let message = "您的得分是： \(points)分"
+        
+        let alert = UIAlertController(title:"科瓦奇您好",
+                                      message:message,
+            preferredStyle: .alert)
+        let action = UIAlertAction(title:"OK",style: .default, handler: nil)
+        alert.addAction(action)
+        
+        //显示提示信息
+        present(alert, animated: true, completion: nil)
+        
+        //开启新的游戏回合
+        startNewRound()
+    }
+    
+    @IBAction func sliderMoved(_ slider:UISlider){
+//        print("滑动条的当前数值是： \(slider.value)")
+        //获取玩家所选择的滑动条数值
+        currentValue = lroundf(slider.value)
+    }
+    
+    //开启新的游戏回合
+    func startNewRound(){
+        
+        //增加游戏回合数
+        round += 1
+        
+        targetValue = Int.random( in: 1...100)
+        currentValue = 50
+        slider.value = Float(currentValue)
+        
+        //4.更新目标数值的标签文本内容
+        updateLabels()
+    }
+    
+    func updateLabels(){
+        
+        targetLabel.text = String(targetValue)
+        scoreLabel.text = String(score)
+        roundLabel.text = String(round)
+    }
+}
+
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/BullsEye.html b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/BullsEye.html
similarity index 100%
rename from iOS11/Projects/cha15/BullsEye/BullsEye/BullsEye.html
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/BullsEye.html
diff --git a/iOS11/Projects/Resources/Icon/Icon-20.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Icon/Icon-20.png
similarity index 100%
rename from iOS11/Projects/Resources/Icon/Icon-20.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Icon/Icon-20.png
diff --git a/iOS11/Projects/Resources/Icon/Icon-29.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Icon/Icon-29.png
similarity index 100%
rename from iOS11/Projects/Resources/Icon/Icon-29.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Icon/Icon-29.png
diff --git a/iOS11/Projects/Resources/Images/Background@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/Background@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/Background@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/Background@2x.png
diff --git a/iOS11/Projects/Resources/Images/Button-Highlighted@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/Button-Highlighted@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/Button-Highlighted@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/Button-Highlighted@2x.png
diff --git a/iOS11/Projects/Resources/Images/InfoButton@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/InfoButton@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/InfoButton@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/InfoButton@2x.png
diff --git a/iOS11/Projects/Resources/Images/SliderThumb-Normal@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/SliderThumb-Normal@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/SliderThumb-Normal@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/SliderThumb-Normal@2x.png
diff --git a/iOS11/Projects/Resources/Images/SliderTrackRight@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/SliderTrackRight@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/SliderTrackRight@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/SliderTrackRight@2x.png
diff --git a/iOS11/Projects/Resources/Images/StartOverIcon@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/StartOverIcon@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Images/StartOverIcon@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Images/StartOverIcon@2x.png
diff --git a/iOS11/Projects/Resources/Launch Images/Default-568h@2x.png b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Launch Images/Default-568h@2x.png
similarity index 100%
rename from iOS11/Projects/Resources/Launch Images/Default-568h@2x.png
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Launch Images/Default-568h@2x.png
diff --git a/iOS11/Projects/Resources/Photoshop/BullsEye.psd b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Photoshop/BullsEye.psd
similarity index 100%
rename from iOS11/Projects/Resources/Photoshop/BullsEye.psd
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Photoshop/BullsEye.psd
diff --git a/iOS11/Projects/Resources/Photoshop/Icon.psd b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Photoshop/Icon.psd
similarity index 100%
rename from iOS11/Projects/Resources/Photoshop/Icon.psd
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/Photoshop/Icon.psd
diff --git a/iOS11/Projects/Resources/music/bgmusic.mp3 b/iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/music/bgmusic.mp3
similarity index 100%
rename from iOS11/Projects/Resources/music/bgmusic.mp3
rename to iOS Basic/iOS12+Swift4.2/Series1/Projects/Resources/music/bgmusic.mp3
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diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
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+/* End PBXBuildFile section */
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+			);
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+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..6cd16ca
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..94f3768
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist	
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Checklists/ChecklistViewController.swift"
+            timestampString = "572512568.9512039"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "27"
+            endingLineNumber = "27"
+            landmarkName = "unknown"
+            landmarkType = "0">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..430d3db
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,64 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 100
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row % 5 == 0 {
+            label.text = "观看《流浪地球》"
+        } else if indexPath.row % 5 == 1{
+            label.text = "观看《疯狂的外星人》"
+        } else if indexPath.row % 5 == 2{
+            label.text = "观看《飞驰人生》"
+        } else if indexPath.row % 5 == 3{
+            label.text = "观看《喜剧之王》"
+        }else if indexPath.row  % 5 == 4{
+            label.text = "观看《小猪佩奇过大年》"
+        }
+        //结束以上的新代码段
+        
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            if cell.accessoryType == .none{
+                cell.accessoryType = .checkmark
+            }else{
+                cell.accessoryType = .none
+            }
+        }
+        
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha10/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..3b386ff
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha10/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha10/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..86faa38
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,115 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+    let row0text = "去看电影《流浪地球》"
+    let row1text = "学习吴恩达博士的《机器学习》教程"
+    let row2text = "开通海外交易账户买美港股"
+    let row3text = "看美食节目《风味人间》"
+    let row4text = "约上好友行摄维多利亚港"
+    
+    var row0checked = true
+    var row1checked = false
+    var row2checked = true
+    var row3checked = true
+    var row4checked = false
+   
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 5
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row == 0 {
+            label.text = row0text
+        } else if indexPath.row == 1{
+            label.text = row1text
+        } else if indexPath.row == 2{
+            label.text = row2text
+        } else if indexPath.row == 3{
+            label.text = row3text
+        }else if indexPath.row == 4{
+            label.text = row4text
+        }
+        //结束以上的新代码段
+        configureCheckmark(for: cell, at: indexPath)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+
+            if indexPath.row == 0 {
+                row0checked = !row0checked
+
+            } else if indexPath.row == 1 {
+                row1checked = !row1checked
+            } else if indexPath.row == 2 {
+                row2checked = !row2checked
+            }   else if indexPath.row == 3 {
+                row3checked = !row3checked
+            }   else if indexPath.row == 4 {
+                row4checked = !row4checked
+            }
+            configureCheckmark(for: cell, at: indexPath)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, at indexPath: IndexPath){
+        
+        var isChecked = false
+        
+        if indexPath.row == 0{
+            isChecked = row0checked
+        }else if indexPath.row == 1{
+            isChecked = row1checked
+        }else if indexPath.row == 2{
+            isChecked = row2checked
+        }else if indexPath.row == 3{
+            isChecked = row3checked
+        }else if indexPath.row == 4{
+            isChecked = row4checked
+        }
+        
+        if isChecked {
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha11/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..28256db
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha11/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha11/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..96f5c94
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,16 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..0d12730
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,120 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var row0item = ChecklistItem()
+    var row1item = ChecklistItem()
+    var row2item = ChecklistItem()
+    var row3item = ChecklistItem()
+    var row4item = ChecklistItem()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 5
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row  == 0 {
+            label.text = row0item.text
+        } else if indexPath.row  == 1{
+            label.text = row1item.text
+        } else if indexPath.row  == 2{
+            label.text = row2item.text
+        } else if indexPath.row == 3{
+            label.text = row3item.text
+        }else if indexPath.row  == 4{
+            label.text = row4item.text
+        }
+        //结束以上的新代码段
+        configureCheckmark(for: cell, at: indexPath)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+
+            if indexPath.row == 0 {
+                row0item.checked = !row0item.checked
+
+            } else if indexPath.row == 1 {
+                row1item.checked = !row1item.checked
+            } else if indexPath.row == 2 {
+                row2item.checked = !row2item.checked
+            }   else if indexPath.row == 3 {
+                row3item.checked = !row3item.checked
+            }   else if indexPath.row == 4 {
+                row4item.checked = !row4item.checked
+            }
+            configureCheckmark(for: cell, at: indexPath)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, at indexPath: IndexPath){
+        
+        var isChecked = false
+        
+        if indexPath.row == 0{
+            isChecked = row0item.checked
+        }else if indexPath.row == 1{
+            isChecked = row1item.checked
+        }else if indexPath.row == 2{
+            isChecked = row2item.checked
+        }else if indexPath.row == 3{
+            isChecked = row3item.checked
+        }else if indexPath.row == 4{
+            isChecked = row4item.checked
+        }
+        
+        if isChecked {
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha12/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
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+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
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+					"$(inherited)",
+				);
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+		};
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+			buildSettings = {
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+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..df2f24a
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..96f5c94
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,16 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..8ed6e3f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,105 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, at: indexPath)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.checked = !item.checked
+            configureCheckmark(for: cell, at: indexPath)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+     
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, at indexPath: IndexPath){
+        
+        let item = items[indexPath.row]
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha13/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..9e9d1cc
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha15/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha15/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..469c5c4
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,109 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+     
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha14/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..fda6629
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha16/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha16/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..625c739
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--我想做的事-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="我想做的事" id="l3H-zN-HZa"/>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..74b10f1
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,112 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+     
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha15/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..f7b776f
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha17/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha17/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..3ffd55e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklists-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="Checklists" id="l3H-zN-HZa">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="W0h-js-c20">
+                            <connections>
+                                <action selector="addItem" destination="Z1H-9n-j2G" id="pOd-nQ-UIt"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..23e7ff0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,140 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
+        //1
+        items.remove(at: indexPath.row)
+        
+        //2
+        let indexPaths = [indexPath]
+        tableView.deleteRows(at: indexPaths, with: .automatic)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+    
+    
+    
+    //MARK: - Actions
+    @IBAction func addItem(){
+        
+        let newRowIndex = items.count
+        
+        let item = ChecklistItem()
+        item.text = "我是新添加的一行内容"
+        items.append(item)
+        
+        let indexPath = IndexPath(row: newRowIndex, section: 0)
+        let indexPaths = [indexPath]
+        
+        tableView.insertRows(at: indexPaths , with: .automatic)
+    }
+    
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha16/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..a01e05b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
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+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
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+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
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+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
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+			);
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+		};
+/* End PBXSourcesBuildPhase section */
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+			);
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+			children = (
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+			);
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+		};
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+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..9efe9f8
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..eea9051
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklists-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="Checklists" id="l3H-zN-HZa">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="W0h-js-c20">
+                            <connections>
+                                <segue destination="lcL-6P-4ty" kind="show" id="8Ip-Q3-q2b"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Add Item-->
+        <scene sceneID="3in-AS-G8p">
+            <objects>
+                <tableViewController id="lcL-6P-4ty" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="7vo-7V-Kts">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" id="Gbo-th-2Dh">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Gbo-th-2Dh" id="P94-gW-aGt">
+                                    <rect key="frame" x="0.0" y="0.0" width="320" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="lcL-6P-4ty" id="Rbj-Aj-eri"/>
+                            <outlet property="delegate" destination="lcL-6P-4ty" id="fh6-3T-0kZ"/>
+                        </connections>
+                    </tableView>
+                    <toolbarItems/>
+                    <navigationItem key="navigationItem" title="Add Item" id="kWj-9H-uOd">
+                        <barButtonItem key="leftBarButtonItem" systemItem="cancel" id="XpB-zy-6hy"/>
+                        <barButtonItem key="rightBarButtonItem" style="done" systemItem="done" id="eMM-9X-4uf"/>
+                    </navigationItem>
+                    <simulatedToolbarMetrics key="simulatedBottomBarMetrics"/>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="xUb-DA-Di8" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1956" y="72"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..23e7ff0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,140 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
+        //1
+        items.remove(at: indexPath.row)
+        
+        //2
+        let indexPaths = [indexPath]
+        tableView.deleteRows(at: indexPaths, with: .automatic)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+    
+    
+    
+    //MARK: - Actions
+    @IBAction func addItem(){
+        
+        let newRowIndex = items.count
+        
+        let item = ChecklistItem()
+        item.text = "我是新添加的一行内容"
+        items.append(item)
+        
+        let indexPath = IndexPath(row: newRowIndex, section: 0)
+        let indexPaths = [indexPath]
+        
+        tableView.insertRows(at: indexPaths , with: .automatic)
+    }
+    
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha17/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..2987b4c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,349 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 785292D0223B45C800ACD810 /* AddItemViewController.swift */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		785292D0223B45C800ACD810 /* AddItemViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddItemViewController.swift; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+				785292D0223B45C800ACD810 /* AddItemViewController.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..00edf96
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AddItemViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AddItemViewController.swift
new file mode 100644
index 0000000..ea0e844
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AddItemViewController.swift	
@@ -0,0 +1,33 @@
+//
+//  AddItemViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 3/15/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class AddItemViewController: UITableViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        navigationItem.largeTitleDisplayMode = .never
+    }
+
+    
+    //MARK:- Actions
+    
+    @IBAction func cancel(){
+        
+        navigationController?.popViewController(animated: true)
+        
+    }
+    
+    @IBAction func done(){
+        
+        navigationController?.popViewController(animated: true)
+    }
+ 
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..42a6734
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..3340a55
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklists-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="Checklists" id="l3H-zN-HZa">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="W0h-js-c20">
+                            <connections>
+                                <segue destination="lcL-6P-4ty" kind="show" id="8Ip-Q3-q2b"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Add Item-->
+        <scene sceneID="3in-AS-G8p">
+            <objects>
+                <tableViewController id="lcL-6P-4ty" customClass="AddItemViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="7vo-7V-Kts">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" id="Gbo-th-2Dh">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Gbo-th-2Dh" id="P94-gW-aGt">
+                                    <rect key="frame" x="0.0" y="0.0" width="320" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="lcL-6P-4ty" id="Rbj-Aj-eri"/>
+                            <outlet property="delegate" destination="lcL-6P-4ty" id="fh6-3T-0kZ"/>
+                        </connections>
+                    </tableView>
+                    <toolbarItems/>
+                    <navigationItem key="navigationItem" title="Add Item" id="kWj-9H-uOd">
+                        <barButtonItem key="leftBarButtonItem" systemItem="cancel" id="XpB-zy-6hy">
+                            <connections>
+                                <action selector="cancel" destination="lcL-6P-4ty" id="ruy-bV-aFn"/>
+                            </connections>
+                        </barButtonItem>
+                        <barButtonItem key="rightBarButtonItem" style="done" systemItem="done" id="eMM-9X-4uf">
+                            <connections>
+                                <action selector="done" destination="lcL-6P-4ty" id="VY0-jp-3x2"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                    <simulatedToolbarMetrics key="simulatedBottomBarMetrics"/>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="xUb-DA-Di8" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1956" y="72"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..23e7ff0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,140 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
+        //1
+        items.remove(at: indexPath.row)
+        
+        //2
+        let indexPaths = [indexPath]
+        tableView.deleteRows(at: indexPaths, with: .automatic)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+    
+    
+    
+    //MARK: - Actions
+    @IBAction func addItem(){
+        
+        let newRowIndex = items.count
+        
+        let item = ChecklistItem()
+        item.text = "我是新添加的一行内容"
+        items.append(item)
+        
+        let indexPath = IndexPath(row: newRowIndex, section: 0)
+        let indexPaths = [indexPath]
+        
+        tableView.insertRows(at: indexPaths , with: .automatic)
+    }
+    
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha18/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..2987b4c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,349 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 785292D0223B45C800ACD810 /* AddItemViewController.swift */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		785292D0223B45C800ACD810 /* AddItemViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddItemViewController.swift; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+				785292D0223B45C800ACD810 /* AddItemViewController.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
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+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
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+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..3ec6216
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AddItemViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AddItemViewController.swift
new file mode 100644
index 0000000..c6f9329
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AddItemViewController.swift	
@@ -0,0 +1,39 @@
+//
+//  AddItemViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 3/15/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class AddItemViewController: UITableViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        navigationItem.largeTitleDisplayMode = .never
+    }
+
+    
+    //MARK:- Actions
+    
+    @IBAction func cancel(){
+        
+        navigationController?.popViewController(animated: true)
+        
+    }
+    
+    @IBAction func done(){
+        
+        navigationController?.popViewController(animated: true)
+    }
+    
+    //MARK:- Table View Delegate methods
+    
+    override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
+        return nil
+    }
+ 
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..42a6734
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..d10ae49
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklists-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="Checklists" id="l3H-zN-HZa">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="W0h-js-c20">
+                            <connections>
+                                <segue destination="lcL-6P-4ty" kind="show" id="8Ip-Q3-q2b"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Add Item-->
+        <scene sceneID="3in-AS-G8p">
+            <objects>
+                <tableViewController id="lcL-6P-4ty" customClass="AddItemViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="static" style="grouped" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="18" sectionFooterHeight="18" id="7vo-7V-Kts">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" cocoaTouchSystemColor="groupTableViewBackgroundColor"/>
+                        <sections>
+                            <tableViewSection id="RBH-ys-lRH">
+                                <cells>
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="none" indentationWidth="10" id="Gbo-th-2Dh">
+                                        <rect key="frame" x="0.0" y="35" width="320" height="44"/>
+                                        <autoresizingMask key="autoresizingMask"/>
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Gbo-th-2Dh" id="P94-gW-aGt">
+                                            <rect key="frame" x="0.0" y="0.0" width="320" height="43.5"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <subviews>
+                                                <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="1Jd-rc-Wm0">
+                                                    <rect key="frame" x="3" y="3" width="314" height="37.5"/>
+                                                    <nil key="textColor"/>
+                                                    <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                                                    <textInputTraits key="textInputTraits"/>
+                                                </textField>
+                                            </subviews>
+                                            <constraints>
+                                                <constraint firstItem="1Jd-rc-Wm0" firstAttribute="top" secondItem="P94-gW-aGt" secondAttribute="top" constant="3" id="3XK-wT-IiS"/>
+                                                <constraint firstAttribute="trailing" secondItem="1Jd-rc-Wm0" secondAttribute="trailing" constant="3" id="6ck-Nk-VY7"/>
+                                                <constraint firstItem="1Jd-rc-Wm0" firstAttribute="leading" secondItem="P94-gW-aGt" secondAttribute="leading" constant="3" id="h6g-eJ-U0R"/>
+                                                <constraint firstAttribute="bottom" secondItem="1Jd-rc-Wm0" secondAttribute="bottom" constant="3" id="kj3-3W-e2A"/>
+                                            </constraints>
+                                        </tableViewCellContentView>
+                                    </tableViewCell>
+                                </cells>
+                            </tableViewSection>
+                        </sections>
+                        <connections>
+                            <outlet property="dataSource" destination="lcL-6P-4ty" id="Rbj-Aj-eri"/>
+                            <outlet property="delegate" destination="lcL-6P-4ty" id="fh6-3T-0kZ"/>
+                        </connections>
+                    </tableView>
+                    <toolbarItems/>
+                    <navigationItem key="navigationItem" title="Add Item" id="kWj-9H-uOd">
+                        <barButtonItem key="leftBarButtonItem" systemItem="cancel" id="XpB-zy-6hy">
+                            <connections>
+                                <action selector="cancel" destination="lcL-6P-4ty" id="ruy-bV-aFn"/>
+                            </connections>
+                        </barButtonItem>
+                        <barButtonItem key="rightBarButtonItem" style="done" systemItem="done" id="eMM-9X-4uf">
+                            <connections>
+                                <action selector="done" destination="lcL-6P-4ty" id="VY0-jp-3x2"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                    <simulatedToolbarMetrics key="simulatedBottomBarMetrics"/>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="xUb-DA-Di8" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1955.625" y="71.83098591549296"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..23e7ff0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,140 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
+        //1
+        items.remove(at: indexPath.row)
+        
+        //2
+        let indexPaths = [indexPath]
+        tableView.deleteRows(at: indexPaths, with: .automatic)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+    
+    
+    
+    //MARK: - Actions
+    @IBAction func addItem(){
+        
+        let newRowIndex = items.count
+        
+        let item = ChecklistItem()
+        item.text = "我是新添加的一行内容"
+        items.append(item)
+        
+        let indexPath = IndexPath(row: newRowIndex, section: 0)
+        let indexPaths = [indexPath]
+        
+        tableView.insertRows(at: indexPaths , with: .automatic)
+    }
+    
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha19/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..2987b4c
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,349 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+		785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 785292D0223B45C800ACD810 /* AddItemViewController.swift */; };
+		78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		785292D0223B45C800ACD810 /* AddItemViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AddItemViewController.swift; sourceTree = "<group>"; };
+		78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistItem.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+				78E9A7F3222FAC8800A287B3 /* ChecklistItem.swift */,
+				785292D0223B45C800ACD810 /* AddItemViewController.swift */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				785292D1223B45C800ACD810 /* AddItemViewController.swift in Sources */,
+				78E9A7F4222FAC8800A287B3 /* ChecklistItem.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
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+			isa = XCBuildConfiguration;
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+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
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+				);
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+				CLANG_WARN_COMMA = YES;
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+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
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+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..d267c7b
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
old mode 100755
new mode 100644
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AddItemViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AddItemViewController.swift
new file mode 100644
index 0000000..9f5afb3
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AddItemViewController.swift	
@@ -0,0 +1,60 @@
+//
+//  AddItemViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 3/15/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class AddItemViewController: UITableViewController,UITextFieldDelegate {
+
+    @IBOutlet weak var doneBarButton: UIBarButtonItem!
+    @IBOutlet weak var textField: UITextField!
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        navigationItem.largeTitleDisplayMode = .never
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        textField.becomeFirstResponder()
+    }
+    
+    //MARK:- Actions
+    
+    @IBAction func cancel(){
+        
+        navigationController?.popViewController(animated: true)
+        
+    }
+    
+    @IBAction func done(){
+        //print some contents
+        print("用户输入的信息是： \(textField.text!)")
+        navigationController?.popViewController(animated: true)
+    }
+    
+    //MARK:- Table View Delegate methods
+    
+    override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
+        return nil
+    }
+ 
+    //MARK:- Text Field Delegates
+    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
+        let oldText = textField.text!
+        let stringRange = Range(range, in:oldText)!
+        let newText = oldText.replacingCharacters(in: stringRange, with: string)
+        
+        if newText.isEmpty{
+            doneBarButton.isEnabled = false
+        }else{
+            doneBarButton.isEnabled = true
+        }
+        return true
+    }
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..42a6734
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..48d0e66
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,143 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="brG-iJ-gaJ">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14490.49"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklists-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                    <navigationItem key="navigationItem" title="Checklists" id="l3H-zN-HZa">
+                        <barButtonItem key="rightBarButtonItem" systemItem="add" id="W0h-js-c20">
+                            <connections>
+                                <segue destination="lcL-6P-4ty" kind="show" id="8Ip-Q3-q2b"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1117.5" y="71.83098591549296"/>
+        </scene>
+        <!--Add Item-->
+        <scene sceneID="3in-AS-G8p">
+            <objects>
+                <tableViewController id="lcL-6P-4ty" customClass="AddItemViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="static" style="grouped" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="18" sectionFooterHeight="18" id="7vo-7V-Kts">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" cocoaTouchSystemColor="groupTableViewBackgroundColor"/>
+                        <sections>
+                            <tableViewSection id="RBH-ys-lRH">
+                                <cells>
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="none" indentationWidth="10" id="Gbo-th-2Dh">
+                                        <rect key="frame" x="0.0" y="35" width="320" height="44"/>
+                                        <autoresizingMask key="autoresizingMask"/>
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Gbo-th-2Dh" id="P94-gW-aGt">
+                                            <rect key="frame" x="0.0" y="0.0" width="320" height="43.5"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <subviews>
+                                                <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" textAlignment="natural" adjustsFontSizeToFit="NO" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="1Jd-rc-Wm0">
+                                                    <rect key="frame" x="3" y="3" width="314" height="37.5"/>
+                                                    <nil key="textColor"/>
+                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                                    <textInputTraits key="textInputTraits" autocapitalizationType="sentences" returnKeyType="done" enablesReturnKeyAutomatically="YES"/>
+                                                    <connections>
+                                                        <action selector="done" destination="lcL-6P-4ty" eventType="editingDidEndOnExit" id="n59-Sp-4oU"/>
+                                                        <outlet property="delegate" destination="lcL-6P-4ty" id="aTv-TS-bHp"/>
+                                                    </connections>
+                                                </textField>
+                                            </subviews>
+                                            <constraints>
+                                                <constraint firstItem="1Jd-rc-Wm0" firstAttribute="top" secondItem="P94-gW-aGt" secondAttribute="top" constant="3" id="3XK-wT-IiS"/>
+                                                <constraint firstAttribute="trailing" secondItem="1Jd-rc-Wm0" secondAttribute="trailing" constant="3" id="6ck-Nk-VY7"/>
+                                                <constraint firstItem="1Jd-rc-Wm0" firstAttribute="leading" secondItem="P94-gW-aGt" secondAttribute="leading" constant="3" id="h6g-eJ-U0R"/>
+                                                <constraint firstAttribute="bottom" secondItem="1Jd-rc-Wm0" secondAttribute="bottom" constant="3" id="kj3-3W-e2A"/>
+                                            </constraints>
+                                        </tableViewCellContentView>
+                                    </tableViewCell>
+                                </cells>
+                            </tableViewSection>
+                        </sections>
+                        <connections>
+                            <outlet property="dataSource" destination="lcL-6P-4ty" id="Rbj-Aj-eri"/>
+                            <outlet property="delegate" destination="lcL-6P-4ty" id="fh6-3T-0kZ"/>
+                        </connections>
+                    </tableView>
+                    <toolbarItems/>
+                    <navigationItem key="navigationItem" title="Add Item" id="kWj-9H-uOd">
+                        <barButtonItem key="leftBarButtonItem" systemItem="cancel" id="XpB-zy-6hy">
+                            <connections>
+                                <action selector="cancel" destination="lcL-6P-4ty" id="ruy-bV-aFn"/>
+                            </connections>
+                        </barButtonItem>
+                        <barButtonItem key="rightBarButtonItem" enabled="NO" style="done" systemItem="done" id="eMM-9X-4uf">
+                            <connections>
+                                <action selector="done" destination="lcL-6P-4ty" id="VY0-jp-3x2"/>
+                            </connections>
+                        </barButtonItem>
+                    </navigationItem>
+                    <simulatedToolbarMetrics key="simulatedBottomBarMetrics"/>
+                    <connections>
+                        <outlet property="doneBarButton" destination="eMM-9X-4uf" id="2Kg-3K-BiR"/>
+                        <outlet property="textField" destination="1Jd-rc-Wm0" id="Ynv-yr-PbA"/>
+                    </connections>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="xUb-DA-Di8" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="1955.625" y="71.83098591549296"/>
+        </scene>
+        <!--Navigation Controller-->
+        <scene sceneID="gqz-ry-1j4">
+            <objects>
+                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="brG-iJ-gaJ" sceneMemberID="viewController">
+                    <toolbarItems/>
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="Q2o-Cx-xUa">
+                        <rect key="frame" x="0.0" y="20" width="320" height="44"/>
+                        <autoresizingMask key="autoresizingMask"/>
+                    </navigationBar>
+                    <nil name="viewControllers"/>
+                    <connections>
+                        <segue destination="Z1H-9n-j2G" kind="relationship" relationship="rootViewController" id="W9e-fW-XKq"/>
+                    </connections>
+                </navigationController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="nmq-4b-UpU" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistItem.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistItem.swift
new file mode 100644
index 0000000..3190dae
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistItem.swift	
@@ -0,0 +1,21 @@
+//
+//  ChecklistItem.swift
+//  Checklists
+//
+//  Created by eseedo on 3/6/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import Foundation
+
+class ChecklistItem{
+    
+    var text = ""
+    var checked = false
+    
+    func toggleChecked(){
+        
+        checked = !checked
+    }
+    
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..23e7ff0
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,140 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+    
+    //MARK:- Define some constants &variables
+    
+//    let row0text = "去看电影《流浪地球》"
+//    let row1text = "学习吴恩达博士的《机器学习》教程"
+//    let row2text = "开通海外交易账户买美港股"
+//    let row3text = "看美食节目《风味人间》"
+//    let row4text = "约上好友行摄维多利亚港"
+//
+//    var row0checked = true
+//    var row1checked = false
+//    var row2checked = true
+//    var row3checked = true
+//    var row4checked = false
+   
+    var items = [ChecklistItem]()
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        //Change default title style
+        navigationController?.navigationBar.prefersLargeTitles = true
+        
+        // Do any additional setup after loading the view, typically from a nib.
+        let item1 = ChecklistItem()
+        item1.text = "重温德容为加盟巴萨寄出投名状"
+        items.append(item1)
+        
+        let item2 = ChecklistItem()
+        item2.text = "A股暴涨，赶紧去开个科创板的新户"
+        item2.checked = true
+        items.append(item2)
+        
+        let item3 = ChecklistItem()
+        item3.text = "两会召开中，关注每天的新闻动态"
+        item3.checked = true
+        items.append(item3)
+        
+        let item4 = ChecklistItem()
+        item4.text = "学习神奇的AI视频变脸技术"
+        items.append(item4)
+        
+        let item5 = ChecklistItem()
+        item5.text = "为参加6月的WWDC提前做好准备"
+        items.append(item5)
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return items.count
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        
+        
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        
+        let item = items[indexPath.row]
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        label.text = item.text
+        configureCheckmark(for: cell, with:  item)
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            let item = items[indexPath.row]
+            item.toggleChecked()
+            configureCheckmark(for: cell, with: item)
+            
+        }
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+    
+    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
+        //1
+        items.remove(at: indexPath.row)
+        
+        //2
+        let indexPaths = [indexPath]
+        tableView.deleteRows(at: indexPaths, with: .automatic)
+    }
+    
+    
+    //MARK:- CONFIGURE THE CHECKMARK
+    func configureCheckmark(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        if item.checked{
+            cell.accessoryType = .checkmark
+        }else{
+            cell.accessoryType = .none
+        }
+    }
+    
+    func configureText(for cell: UITableViewCell, with item: ChecklistItem){
+        
+        let label = cell.viewWithTag(1000) as! UILabel
+        label.text = item.text
+    }
+    
+    
+    
+    //MARK: - Actions
+    @IBAction func addItem(){
+        
+        let newRowIndex = items.count
+        
+        let item = ChecklistItem()
+        item.text = "我是新添加的一行内容"
+        items.append(item)
+        
+        let indexPath = IndexPath(row: newRowIndex, section: 0)
+        let indexPaths = [indexPath]
+        
+        tableView.insertRows(at: indexPaths , with: .automatic)
+    }
+    
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha20/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
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+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			children = (
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+			);
+			name = Main.storyboard;
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+			);
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+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..55c0253
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..1f27469
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="320" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="72"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..b5cfc21
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,20 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha3/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
old mode 100755
new mode 100644
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..04e3177
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..fcddf2b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..b5cfc21
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,20 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha4/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
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+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
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+		};
+/* End PBXVariantGroup section */
+
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+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
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+		};
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+			buildSettings = {
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+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..043f0e6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..33cddb4
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..fcddf2b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..3934c0d
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,28 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- Table View Data Source
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 5
+    }
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        return cell
+    }
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha5/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..043f0e6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..4133492
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..fcddf2b
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..a2eb954
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,31 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    //TODO: complete this
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 5
+    }
+    
+    //FIXME: might be error
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        return cell
+    }
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha6/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
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+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
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+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
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+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
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+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			);
+			name = Main.storyboard;
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+				LD_RUNPATH_SEARCH_PATHS = (
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+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..043f0e6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..b53501f
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..bcad37e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist	
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Checklists/ChecklistViewController.swift"
+            timestampString = "572409127.2611001"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "27"
+            endingLineNumber = "27"
+            landmarkName = "tableView(_:cellForRowAt:)"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..949077e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,48 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 100
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row % 5 == 0 {
+            label.text = "观看《流浪地球》"
+        } else if indexPath.row % 5 == 1{
+            label.text = "观看《疯狂的外星人》"
+        } else if indexPath.row % 5 == 2{
+            label.text = "观看《飞驰人生》"
+        } else if indexPath.row % 5 == 3{
+            label.text = "观看《喜剧之王》"
+        }else if indexPath.row  % 5 == 4{
+            label.text = "观看《小猪佩奇过大年》"
+        }
+        //结束以上的新代码段
+        
+        return cell
+    }
+    
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
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+			);
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+			);
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+		};
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+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
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+			);
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+			);
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+		};
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+/* End PBXSourcesBuildPhase section */
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+/* Begin PBXVariantGroup section */
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+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
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+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
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+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
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+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..043f0e6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..c7629d9
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..c9875ed
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist	
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Checklists/ChecklistViewController.swift"
+            timestampString = "572512568.9512039"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "27"
+            endingLineNumber = "27"
+            landmarkName = "tableView(_:cellForRowAt:)"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..430d3db
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,64 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 100
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row % 5 == 0 {
+            label.text = "观看《流浪地球》"
+        } else if indexPath.row % 5 == 1{
+            label.text = "观看《疯狂的外星人》"
+        } else if indexPath.row % 5 == 2{
+            label.text = "观看《飞驰人生》"
+        } else if indexPath.row % 5 == 3{
+            label.text = "观看《喜剧之王》"
+        }else if indexPath.row  % 5 == 4{
+            label.text = "观看《小猪佩奇过大年》"
+        }
+        //结束以上的新代码段
+        
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            if cell.accessoryType == .none{
+                cell.accessoryType = .checkmark
+            }else{
+                cell.accessoryType = .none
+            }
+        }
+        
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha8/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.pbxproj b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..dc6ac89
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.pbxproj	
@@ -0,0 +1,341 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EEE21E6E58900DCA324 /* AppDelegate.swift */; };
+		78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78226EF021E6E58900DCA324 /* ChecklistViewController.swift */; };
+		78226EF421E6E58900DCA324 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF221E6E58900DCA324 /* Main.storyboard */; };
+		78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF521E6E58A00DCA324 /* Assets.xcassets */; };
+		78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		78226EEB21E6E58900DCA324 /* Checklists.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Checklists.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		78226EEE21E6E58900DCA324 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		78226EF021E6E58900DCA324 /* ChecklistViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChecklistViewController.swift; sourceTree = "<group>"; };
+		78226EF321E6E58900DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		78226EF521E6E58A00DCA324 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		78226EF821E6E58A00DCA324 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		78226EFA21E6E58A00DCA324 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		78226EE821E6E58900DCA324 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		78226EE221E6E58900DCA324 = {
+			isa = PBXGroup;
+			children = (
+				78226EED21E6E58900DCA324 /* Checklists */,
+				78226EEC21E6E58900DCA324 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		78226EEC21E6E58900DCA324 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEB21E6E58900DCA324 /* Checklists.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		78226EED21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXGroup;
+			children = (
+				78226EEE21E6E58900DCA324 /* AppDelegate.swift */,
+				78226EF021E6E58900DCA324 /* ChecklistViewController.swift */,
+				78226EF221E6E58900DCA324 /* Main.storyboard */,
+				78226EF521E6E58A00DCA324 /* Assets.xcassets */,
+				78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */,
+				78226EFA21E6E58A00DCA324 /* Info.plist */,
+			);
+			path = Checklists;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		78226EEA21E6E58900DCA324 /* Checklists */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */;
+			buildPhases = (
+				78226EE721E6E58900DCA324 /* Sources */,
+				78226EE821E6E58900DCA324 /* Frameworks */,
+				78226EE921E6E58900DCA324 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Checklists;
+			productName = Checklists;
+			productReference = 78226EEB21E6E58900DCA324 /* Checklists.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		78226EE321E6E58900DCA324 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = icode;
+				TargetAttributes = {
+					78226EEA21E6E58900DCA324 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 78226EE221E6E58900DCA324;
+			productRefGroup = 78226EEC21E6E58900DCA324 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				78226EEA21E6E58900DCA324 /* Checklists */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		78226EE921E6E58900DCA324 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF921E6E58A00DCA324 /* LaunchScreen.storyboard in Resources */,
+				78226EF621E6E58A00DCA324 /* Assets.xcassets in Resources */,
+				78226EF421E6E58900DCA324 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		78226EE721E6E58900DCA324 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				78226EF121E6E58900DCA324 /* ChecklistViewController.swift in Sources */,
+				78226EEF21E6E58900DCA324 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		78226EF221E6E58900DCA324 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF321E6E58900DCA324 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		78226EF721E6E58A00DCA324 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				78226EF821E6E58A00DCA324 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		78226EFB21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		78226EFC21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		78226EFE21E6E58A00DCA324 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		78226EFF21E6E58A00DCA324 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = 2K9XX73EFS;
+				INFOPLIST_FILE = Checklists/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.icode.Checklists;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		78226EE621E6E58900DCA324 /* Build configuration list for PBXProject "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFB21E6E58A00DCA324 /* Debug */,
+				78226EFC21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		78226EFD21E6E58A00DCA324 /* Build configuration list for PBXNativeTarget "Checklists" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				78226EFE21E6E58A00DCA324 /* Debug */,
+				78226EFF21E6E58A00DCA324 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 78226EE321E6E58900DCA324 /* Project object */;
+}
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..043f0e6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..0afa218
Binary files /dev/null and b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..c9875ed
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist	
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Checklists/ChecklistViewController.swift"
+            timestampString = "572512568.9512039"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "27"
+            endingLineNumber = "27"
+            landmarkName = "tableView(_:cellForRowAt:)"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..39e0612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>Checklists.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/AppDelegate.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/AppDelegate.swift
new file mode 100644
index 0000000..d66b05e
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/AppDelegate.swift	
@@ -0,0 +1,46 @@
+//
+//  AppDelegate.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    func applicationWillResignActive(_ application: UIApplication) {
+        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
+        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
+    }
+
+    func applicationDidEnterBackground(_ application: UIApplication) {
+        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
+        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
+    }
+
+    func applicationWillEnterForeground(_ application: UIApplication) {
+        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
+    }
+
+    func applicationDidBecomeActive(_ application: UIApplication) {
+        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/Contents.json b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/Main.storyboard b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..782850f
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Base.lproj/Main.storyboard	
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Z1H-9n-j2G">
+    <device id="retina4_0" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--Checklist View Controller-->
+        <scene sceneID="ZUT-WU-5vz">
+            <objects>
+                <tableViewController id="Z1H-9n-j2G" customClass="ChecklistViewController" customModule="Checklists" customModuleProvider="target" sceneMemberID="viewController">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="DI0-3e-V1E">
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <prototypes>
+                            <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" accessoryType="checkmark" indentationWidth="10" reuseIdentifier="ChecklistItem" id="RJG-VW-lXW">
+                                <rect key="frame" x="0.0" y="28" width="320" height="44"/>
+                                <autoresizingMask key="autoresizingMask"/>
+                                <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="RJG-VW-lXW" id="fNf-Ec-eiM">
+                                    <rect key="frame" x="0.0" y="0.0" width="280" height="43.5"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                    <subviews>
+                                        <label opaque="NO" userInteractionEnabled="NO" tag="1000" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="zHA-sr-0dd">
+                                            <rect key="frame" x="22" y="12" width="288" height="21"/>
+                                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                            <nil key="textColor"/>
+                                            <nil key="highlightedColor"/>
+                                        </label>
+                                    </subviews>
+                                </tableViewCellContentView>
+                            </tableViewCell>
+                        </prototypes>
+                        <connections>
+                            <outlet property="dataSource" destination="Z1H-9n-j2G" id="uii-Dr-J52"/>
+                            <outlet property="delegate" destination="Z1H-9n-j2G" id="v5d-Uq-gVl"/>
+                        </connections>
+                    </tableView>
+                </tableViewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="O10-Rn-xik" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="120" y="71.83098591549296"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/ChecklistViewController.swift b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/ChecklistViewController.swift
new file mode 100644
index 0000000..430d3db
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/ChecklistViewController.swift	
@@ -0,0 +1,64 @@
+//
+//  ViewController.swift
+//  Checklists
+//
+//  Created by eseedo on 1/10/19.
+//  Copyright © 2019 icode. All rights reserved.
+//
+
+import UIKit
+
+class ChecklistViewController: UITableViewController {
+
+    //TODO: complete this
+    //FIXME: might be error
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+    }
+
+    //MARK:- TABLEVIEW DATA SOURCE/Users/eseedo/Documents/Github/iOSCourse/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha7/Checklists/Checklists/Base.lproj/Main.storyboard
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return 100
+    }
+    
+   
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "ChecklistItem", for: indexPath)
+        //添加下面的代码
+        let label = cell.viewWithTag(1000) as! UILabel
+        
+        if indexPath.row % 5 == 0 {
+            label.text = "观看《流浪地球》"
+        } else if indexPath.row % 5 == 1{
+            label.text = "观看《疯狂的外星人》"
+        } else if indexPath.row % 5 == 2{
+            label.text = "观看《飞驰人生》"
+        } else if indexPath.row % 5 == 3{
+            label.text = "观看《喜剧之王》"
+        }else if indexPath.row  % 5 == 4{
+            label.text = "观看《小猪佩奇过大年》"
+        }
+        //结束以上的新代码段
+        
+        return cell
+    }
+    
+    
+    
+    //MARK:- Table View Delegate
+    
+    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        
+        if let cell = tableView.cellForRow(at: indexPath){
+            if cell.accessoryType == .none{
+                cell.accessoryType = .checkmark
+            }else{
+                cell.accessoryType = .none
+            }
+        }
+        
+        tableView.deselectRow(at: indexPath, animated: true)
+    }
+}
+
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Info.plist b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Info.plist
new file mode 100644
index 0000000..89d7858
--- /dev/null
+++ b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Cha9/Checklists/Checklists/Info.plist	
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png" b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Resources/Checklist Icons/Appointments@2x.png
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rename to iOS Basic/iOS12+Swift4.2/Series2/Projects/Resources/Checklist Icons/Appointments@2x.png
diff --git a/iOS Basic/iOS12+Swift4.2/Series2/Projects/Resources/Checklist Icons/Appointments@3x.png b/iOS Basic/iOS12+Swift4.2/Series2/Projects/Resources/Checklist Icons/Appointments@3x.png
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diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/.DS_Store
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diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj
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--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj	
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+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
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+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
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+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
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+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
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+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
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+			knownRegions = (
+				en,
+				Base,
+			);
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+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
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+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
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+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
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+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
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+				CLANG_CXX_LIBRARY = "libc++";
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+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
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+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
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+				CLANG_WARN_UNREACHABLE_CODE = YES;
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+				DEBUG_INFORMATION_FORMAT = dwarf;
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+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
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+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
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+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
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+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
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+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..98c6edb
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..2095cb7
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,39 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    @State var alertIsVisible: Bool = false //设置初始状态
+    
+    var body: some View {
+        VStack {
+            Text("2020年面对困难不要害怕，武汉加油！")
+                .fontWeight(.black)
+                .foregroundColor(.red)
+            Button(action:
+                {
+                    print("这辈子都没见过这样的要求~")
+                    self.alertIsVisible = true //更改状态
+            }) {
+                Text("过来打我啊")
+            }
+            .alert(isPresented: self.$alertIsVisible){
+                Alert(title: Text("你好"),
+                      message: Text("这样的要求不算奇怪"),
+                      dismissButton: .default(Text("太棒了！")))
+            }
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha10/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha2/.DS_Store
new file mode 100644
index 0000000..5008ddf
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha2/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/.DS_Store
new file mode 100644
index 0000000..4f3d767
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..02809d4
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9F422FD223AC6C0D00AA55B8 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F422FD123AC6C0D00AA55B8 /* AppDelegate.swift */; };
+		9F422FD423AC6C0D00AA55B8 /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F422FD323AC6C0D00AA55B8 /* SceneDelegate.swift */; };
+		9F422FD623AC6C0D00AA55B8 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9F422FD523AC6C0D00AA55B8 /* ContentView.swift */; };
+		9F422FD823AC6C0E00AA55B8 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9F422FD723AC6C0E00AA55B8 /* Assets.xcassets */; };
+		9F422FDB23AC6C0E00AA55B8 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9F422FDA23AC6C0E00AA55B8 /* Preview Assets.xcassets */; };
+		9F422FDE23AC6C0E00AA55B8 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9F422FDC23AC6C0E00AA55B8 /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9F422FCE23AC6C0D00AA55B8 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9F422FD123AC6C0D00AA55B8 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9F422FD323AC6C0D00AA55B8 /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9F422FD523AC6C0D00AA55B8 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9F422FD723AC6C0E00AA55B8 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9F422FDA23AC6C0E00AA55B8 /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9F422FDD23AC6C0E00AA55B8 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9F422FDF23AC6C0E00AA55B8 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9F422FCB23AC6C0D00AA55B8 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9F422FC523AC6C0D00AA55B8 = {
+			isa = PBXGroup;
+			children = (
+				9F422FD023AC6C0D00AA55B8 /* BullsEye */,
+				9F422FCF23AC6C0D00AA55B8 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		9F422FCF23AC6C0D00AA55B8 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9F422FCE23AC6C0D00AA55B8 /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9F422FD023AC6C0D00AA55B8 /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9F422FD123AC6C0D00AA55B8 /* AppDelegate.swift */,
+				9F422FD323AC6C0D00AA55B8 /* SceneDelegate.swift */,
+				9F422FD523AC6C0D00AA55B8 /* ContentView.swift */,
+				9F422FD723AC6C0E00AA55B8 /* Assets.xcassets */,
+				9F422FDC23AC6C0E00AA55B8 /* LaunchScreen.storyboard */,
+				9F422FDF23AC6C0E00AA55B8 /* Info.plist */,
+				9F422FD923AC6C0E00AA55B8 /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9F422FD923AC6C0E00AA55B8 /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9F422FDA23AC6C0E00AA55B8 /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9F422FCD23AC6C0D00AA55B8 /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9F422FE223AC6C0E00AA55B8 /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9F422FCA23AC6C0D00AA55B8 /* Sources */,
+				9F422FCB23AC6C0D00AA55B8 /* Frameworks */,
+				9F422FCC23AC6C0D00AA55B8 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9F422FCE23AC6C0D00AA55B8 /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9F422FC623AC6C0D00AA55B8 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = cylonspace;
+				TargetAttributes = {
+					9F422FCD23AC6C0D00AA55B8 = {
+						CreatedOnToolsVersion = 11.3;
+					};
+				};
+			};
+			buildConfigurationList = 9F422FC923AC6C0D00AA55B8 /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9F422FC523AC6C0D00AA55B8;
+			productRefGroup = 9F422FCF23AC6C0D00AA55B8 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9F422FCD23AC6C0D00AA55B8 /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9F422FCC23AC6C0D00AA55B8 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9F422FDE23AC6C0E00AA55B8 /* LaunchScreen.storyboard in Resources */,
+				9F422FDB23AC6C0E00AA55B8 /* Preview Assets.xcassets in Resources */,
+				9F422FD823AC6C0E00AA55B8 /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9F422FCA23AC6C0D00AA55B8 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9F422FD223AC6C0D00AA55B8 /* AppDelegate.swift in Sources */,
+				9F422FD423AC6C0D00AA55B8 /* SceneDelegate.swift in Sources */,
+				9F422FD623AC6C0D00AA55B8 /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9F422FDC23AC6C0E00AA55B8 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9F422FDD23AC6C0E00AA55B8 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9F422FE023AC6C0E00AA55B8 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
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+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
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+		};
+		9F422FE123AC6C0E00AA55B8 /* Release */ = {
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+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
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+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
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+		};
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+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.cylonspace.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9F422FE423AC6C0E00AA55B8 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.cylonspace.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9F422FC923AC6C0D00AA55B8 /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9F422FE023AC6C0E00AA55B8 /* Debug */,
+				9F422FE123AC6C0E00AA55B8 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9F422FE223AC6C0E00AA55B8 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9F422FE323AC6C0E00AA55B8 /* Debug */,
+				9F422FE423AC6C0E00AA55B8 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9F422FC623AC6C0D00AA55B8 /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..2790ce3
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..d2c3280
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2019/12/20.
+//  Copyright © 2019 cylonspace. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..92ce26d
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,21 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2019/12/20.
+//  Copyright © 2019 cylonspace. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        Text("Hello, World!")
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..594a863
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha2/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2019/12/20.
+//  Copyright © 2019 cylonspace. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/.DS_Store
new file mode 100644
index 0000000..1960007
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
+		9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
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+
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+			);
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+
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+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
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+				9FB4A7AF23D7D70D00F05BFC /* Products */,
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+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
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+			children = (
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+			sourceTree = "<group>";
+		};
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+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
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+			sourceTree = "<group>";
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+		};
+/* End PBXGroup section */
+
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+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
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+			productType = "com.apple.product-type.application";
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+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
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+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
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+			knownRegions = (
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+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
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+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
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+/* End PBXResourcesBuildPhase section */
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+			);
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+/* End PBXVariantGroup section */
+
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+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
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+				GCC_PREPROCESSOR_DEFINITIONS = (
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+				);
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+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
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+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
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+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..b8692a0
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..2cb5bce
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,21 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        Text("Hello, World!")
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha3/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/.DS_Store
new file mode 100644
index 0000000..5bfef62
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
+		9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9FB4A7BF23D7D70E00F05BFC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9FB4A7AB23D7D70D00F05BFC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B023D7D70D00F05BFC /* BullsEye */,
+				9FB4A7AF23D7D70D00F05BFC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9FB4A7B023D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9FB4A7A623D7D70D00F05BFC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
+				};
+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9FB4A7A523D7D70D00F05BFC;
+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..95aa712
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..c2b8d5f
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,23 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        Text("2020年面对困难不要害怕，武汉加油！")
+            .fontWeight(.black)
+            .foregroundColor(.red)
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha4/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/.DS_Store
new file mode 100644
index 0000000..a4f6a5a
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
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+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
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+			);
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+		};
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+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
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+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
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+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
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+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..d2e6a55
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..c2b8d5f
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,23 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        Text("2020年面对困难不要害怕，武汉加油！")
+            .fontWeight(.black)
+            .foregroundColor(.red)
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha5/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/.DS_Store
new file mode 100644
index 0000000..153a728
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
+		9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9FB4A7BF23D7D70E00F05BFC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9FB4A7AB23D7D70D00F05BFC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B023D7D70D00F05BFC /* BullsEye */,
+				9FB4A7AF23D7D70D00F05BFC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9FB4A7B023D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9FB4A7A623D7D70D00F05BFC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
+				};
+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9FB4A7A523D7D70D00F05BFC;
+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..c797156
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..c2b8d5f
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,23 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        Text("2020年面对困难不要害怕，武汉加油！")
+            .fontWeight(.black)
+            .foregroundColor(.red)
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha6/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/.DS_Store
new file mode 100644
index 0000000..2c83534
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
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+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
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+/* End PBXBuildFile section */
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+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
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+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9FB4A7BF23D7D70E00F05BFC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9FB4A7AB23D7D70D00F05BFC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B023D7D70D00F05BFC /* BullsEye */,
+				9FB4A7AF23D7D70D00F05BFC /* Products */,
+			);
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+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9FB4A7B023D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9FB4A7A623D7D70D00F05BFC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
+				};
+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9FB4A7A523D7D70D00F05BFC;
+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
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+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..dc731a0
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..de195ec
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,32 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    var body: some View {
+        VStack {
+            Text("2020年面对困难不要害怕，武汉加油！")
+                .fontWeight(.black)
+                .foregroundColor(.red)
+            Button(action:
+                {
+                    print("这辈子都没见过这样的要求~")
+            }) {
+                Text("过来打我啊")
+            }
+   
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha7/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/.DS_Store
new file mode 100644
index 0000000..64148e8
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
+		9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9FB4A7BF23D7D70E00F05BFC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9FB4A7AB23D7D70D00F05BFC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B023D7D70D00F05BFC /* BullsEye */,
+				9FB4A7AF23D7D70D00F05BFC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9FB4A7B023D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9FB4A7A623D7D70D00F05BFC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
+				};
+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9FB4A7A523D7D70D00F05BFC;
+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..a4b5c03
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..b19cfa9
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,37 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    @State var alertIsVisible: Bool = false //设置初始状态
+    
+    var body: some View {
+        VStack {
+            Text("2020年面对困难不要害怕，武汉加油！")
+                .fontWeight(.black)
+                .foregroundColor(.red)
+            Button(action:
+                {
+                    print("这辈子都没见过这样的要求~")
+                    self.alertIsVisible = true //更改状态
+            }) {
+                Text("过来打我啊")
+            }
+            .alert(isPresented: self.$alertIsVisible){
+                Alert(title: Text("你好"), message: Text("这样的要求不算奇怪"), dismissButton: .default(Text("太棒了！")))
+            }
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha8/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/.DS_Store b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/.DS_Store
new file mode 100644
index 0000000..26a973a
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/.DS_Store differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..f192673
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj	
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */; };
+		9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */; };
+		9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B523D7D70D00F05BFC /* ContentView.swift */; };
+		9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */; };
+		9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */; };
+		9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXFileReference section */
+		9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		9FB4A7B523D7D70D00F05BFC /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
+		9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
+		9FB4A7BD23D7D70E00F05BFC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		9FB4A7BF23D7D70E00F05BFC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		9FB4A7AB23D7D70D00F05BFC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9FB4A7A523D7D70D00F05BFC = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B023D7D70D00F05BFC /* BullsEye */,
+				9FB4A7AF23D7D70D00F05BFC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		9FB4A7AF23D7D70D00F05BFC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		9FB4A7B023D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7B123D7D70D00F05BFC /* AppDelegate.swift */,
+				9FB4A7B323D7D70D00F05BFC /* SceneDelegate.swift */,
+				9FB4A7B523D7D70D00F05BFC /* ContentView.swift */,
+				9FB4A7B723D7D70E00F05BFC /* Assets.xcassets */,
+				9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */,
+				9FB4A7BF23D7D70E00F05BFC /* Info.plist */,
+				9FB4A7B923D7D70E00F05BFC /* Preview Content */,
+			);
+			path = BullsEye;
+			sourceTree = "<group>";
+		};
+		9FB4A7B923D7D70E00F05BFC /* Preview Content */ = {
+			isa = PBXGroup;
+			children = (
+				9FB4A7BA23D7D70E00F05BFC /* Preview Assets.xcassets */,
+			);
+			path = "Preview Content";
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		9FB4A7AD23D7D70D00F05BFC /* BullsEye */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */;
+			buildPhases = (
+				9FB4A7AA23D7D70D00F05BFC /* Sources */,
+				9FB4A7AB23D7D70D00F05BFC /* Frameworks */,
+				9FB4A7AC23D7D70D00F05BFC /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = BullsEye;
+			productName = BullsEye;
+			productReference = 9FB4A7AE23D7D70D00F05BFC /* BullsEye.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		9FB4A7A623D7D70D00F05BFC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1130;
+				LastUpgradeCheck = 1130;
+				ORGANIZATIONNAME = happybubsy;
+				TargetAttributes = {
+					9FB4A7AD23D7D70D00F05BFC = {
+						CreatedOnToolsVersion = 11.3.1;
+					};
+				};
+			};
+			buildConfigurationList = 9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 9FB4A7A523D7D70D00F05BFC;
+			productRefGroup = 9FB4A7AF23D7D70D00F05BFC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				9FB4A7AD23D7D70D00F05BFC /* BullsEye */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		9FB4A7AC23D7D70D00F05BFC /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7BE23D7D70E00F05BFC /* LaunchScreen.storyboard in Resources */,
+				9FB4A7BB23D7D70E00F05BFC /* Preview Assets.xcassets in Resources */,
+				9FB4A7B823D7D70E00F05BFC /* Assets.xcassets in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		9FB4A7AA23D7D70D00F05BFC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9FB4A7B223D7D70D00F05BFC /* AppDelegate.swift in Sources */,
+				9FB4A7B423D7D70D00F05BFC /* SceneDelegate.swift in Sources */,
+				9FB4A7B623D7D70D00F05BFC /* ContentView.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		9FB4A7BC23D7D70E00F05BFC /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				9FB4A7BD23D7D70E00F05BFC /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		9FB4A7C023D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		9FB4A7C123D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		9FB4A7C323D7D70E00F05BFC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		9FB4A7C423D7D70E00F05BFC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_ASSET_PATHS = "\"BullsEye/Preview Content\"";
+				ENABLE_PREVIEWS = YES;
+				INFOPLIST_FILE = BullsEye/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.happybubsy.BullsEye;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		9FB4A7A923D7D70D00F05BFC /* Build configuration list for PBXProject "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C023D7D70E00F05BFC /* Debug */,
+				9FB4A7C123D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		9FB4A7C223D7D70E00F05BFC /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				9FB4A7C323D7D70E00F05BFC /* Debug */,
+				9FB4A7C423D7D70E00F05BFC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 9FB4A7A623D7D70D00F05BFC /* Project object */;
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..dd23f4b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/contents.xcworkspacedata	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:BullsEye.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist	
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate
new file mode 100644
index 0000000..8b27acc
Binary files /dev/null and b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/cylonspace.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist
new file mode 100644
index 0000000..ec9a40c
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/cylonspace.xcuserdatad/xcschemes/xcschememanagement.plist	
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>BullsEye.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/AppDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/AppDelegate.swift
new file mode 100644
index 0000000..272b3db
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/AppDelegate.swift	
@@ -0,0 +1,37 @@
+//
+//  AppDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json	
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..865e932
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard	
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/ContentView.swift b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/ContentView.swift
new file mode 100644
index 0000000..2095cb7
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/ContentView.swift	
@@ -0,0 +1,39 @@
+//
+//  ContentView.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    @State var alertIsVisible: Bool = false //设置初始状态
+    
+    var body: some View {
+        VStack {
+            Text("2020年面对困难不要害怕，武汉加油！")
+                .fontWeight(.black)
+                .foregroundColor(.red)
+            Button(action:
+                {
+                    print("这辈子都没见过这样的要求~")
+                    self.alertIsVisible = true //更改状态
+            }) {
+                Text("过来打我啊")
+            }
+            .alert(isPresented: self.$alertIsVisible){
+                Alert(title: Text("你好"),
+                      message: Text("这样的要求不算奇怪"),
+                      dismissButton: .default(Text("太棒了！")))
+            }
+        }
+    }
+}
+
+struct ContentView_Previews: PreviewProvider {
+    static var previews: some View {
+        ContentView()
+    }
+}
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Info.plist b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Info.plist
new file mode 100644
index 0000000..9742bf0
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Info.plist	
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/Preview Content/Preview Assets.xcassets/Contents.json	
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/SceneDelegate.swift b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/SceneDelegate.swift
new file mode 100644
index 0000000..2b4742b
--- /dev/null
+++ b/iOS Basic/iOS13+Swift5.1/code/Cha9/BullsEye/BullsEye/SceneDelegate.swift	
@@ -0,0 +1,64 @@
+//
+//  SceneDelegate.swift
+//  BullsEye
+//
+//  Created by cylonspace on 2020/1/22.
+//  Copyright © 2020 happybubsy. All rights reserved.
+//
+
+import UIKit
+import SwiftUI
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+
+        // Create the SwiftUI view that provides the window contents.
+        let contentView = ContentView()
+
+        // Use a UIHostingController as window root view controller.
+        if let windowScene = scene as? UIWindowScene {
+            let window = UIWindow(windowScene: windowScene)
+            window.rootViewController = UIHostingController(rootView: contentView)
+            self.window = window
+            window.makeKeyAndVisible()
+        }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.h
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.h
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.h
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.m
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/CrazyDragViewController.m
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/main.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha1/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha10/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha11/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.xib b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/AboutViewController.xib
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha12/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.h
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.xib b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.xib
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/AboutViewController.xib
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha13/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
diff --git a/iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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rename from iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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rename from iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha14/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
similarity index 100%
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha15/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha15/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha2/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha3/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha4/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
similarity index 100%
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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rename from iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha5/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha6/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha7/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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rename from iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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rename from iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDrag/main.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/CrazyDragTests.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha8/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/CrazyDrag.xcscheme
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDrag-Info.plist
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDrag-Prefix.pch
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
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rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.h
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragAppDelegate.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.h
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/CrazyDragViewController.m
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/Images.xcassets/LaunchImage.launchimage/Contents.json
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
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rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/en.lproj/InfoPlist.strings
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/main.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/main.m
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDrag/main.m
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests-Info.plist
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests.m
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests.m
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/CrazyDragTests.m
diff --git a/iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
similarity index 100%
rename from iOS7/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
rename to iOS Basic/iOS7+Objective-C/iOS Learning 1/ios7 code/cha9/CrazyDrag/CrazyDragTests/en.lproj/InfoPlist.strings
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pages"
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diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pages"
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diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pages"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pages"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pages"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pages"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pages"
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rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pages"
similarity index 100%
rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pages"
similarity index 100%
rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pages"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2542\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2542\347\257\207.pages"
new file mode 100755
index 0000000..5325095
Binary files /dev/null and "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2542\347\257\207.pages" differ
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2543\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2543\347\257\207.pages"
similarity index 100%
rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2543\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2543\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2544\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2544\347\257\207.pages"
similarity index 100%
rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2544\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2544\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2549\347\257\207.pages" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2549\347\257\207.pages"
similarity index 100%
rename from "iOS7/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2549\347\257\207.pages"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pages/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2549\347\257\207.pages"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25410\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\25411\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2545\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2546\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2547\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\220\203iOS7\347\211\210)-\347\254\2548\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25412\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25413\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25414\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25414\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25414\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\25414\347\257\207.pdf"
diff --git "a/iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pdf"
similarity index 100%
rename from "iOS7/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pdf"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2541\347\257\207.pdf"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2542\347\257\207.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 1/pdfhd/\350\256\251\344\270\215\346\207\202\347\274\226\347\250\213\347\232\204\344\272\272\347\210\261\344\270\212iPhone\345\274\200\345\217\221(2013\347\247\213iOS7\347\211\210)-\347\254\2542\347\257\207.pdf"
new file mode 100644
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diff --git "a/iOS7/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter6.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter6.pdf"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter6.pdf"
diff --git "a/iOS7/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter7.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter7.pdf"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter7.pdf"
diff --git "a/iOS7/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter8.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter8.pdf"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter8.pdf"
diff --git "a/iOS7/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter9.pdf" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter9.pdf"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/articles/\344\273\216\351\233\266\345\274\200\345\247\213\345\255\246iOS7\345\274\200\345\217\221\347\263\273\345\210\227\346\225\231\347\250\213-\344\272\213\345\212\241\347\256\241\347\220\206\350\275\257\344\273\266\345\274\200\345\217\221\345\256\236\346\210\230-Chapter9.pdf"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.pbxproj"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
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--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/WorkspaceSettings.xcsettings"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/Checklists.xcscheme"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.h"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.m"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Base.lproj/Main.storyboard"
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rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.h"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklist.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.h"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha16/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha17/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha18/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha19/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha20/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha21/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha22/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Chores.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/No Icon.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Trips.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/Images.xcassets/Trips.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ItemDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/ListDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Checklists/main.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/ChecklistsTests-Info.plist"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/ChecklistsTests.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/ChecklistsTests/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Appointments.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Birthdays.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Chores.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Drinks.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Folder.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Groceries.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Inbox.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha23/Resources/Checklist Icons/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/IconPickerViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Chores.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Folder.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Folder.imageset/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Folder.imageset/Folder.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Contents.json"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.h"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.m"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ItemDetailViewController.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha24/Resources/Checklist Icons/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/IconPickerViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Chores.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Folder.imageset/Folder.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Trips.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/Images.xcassets/Trips.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ItemDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/ListDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Checklists/main.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/ChecklistsTests/ChecklistsTests-Info.plist"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/ChecklistsTests/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Appointments.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Birthdays.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Chores.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Drinks.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha25/Resources/Checklist Icons/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/IconPickerViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Chores.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ItemDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/ListDetailViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/main.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/main.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Checklists/main.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/ChecklistsTests.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/en.lproj/InfoPlist.strings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/en.lproj/InfoPlist.strings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/ChecklistsTests/en.lproj/InfoPlist.strings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha26/Resources/Checklist Icons/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/IconPickerViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Chores.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Folder.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/No Icon.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Contents.json"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Trips.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ItemDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ItemDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ItemDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ItemDetailViewController.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ListDetailViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ListDetailViewController.h"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ListDetailViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/ListDetailViewController.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/main.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Checklists/main.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/ChecklistsTests-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/ChecklistsTests-Info.plist"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/ChecklistsTests.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/ChecklistsTests.m"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/en.lproj/InfoPlist.strings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/ChecklistsTests/en.lproj/InfoPlist.strings"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Appointments.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Appointments@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Birthdays.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Birthdays@2x.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Chores.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks.png"
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rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/No Icon@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/No Icon@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Photos.imageset/Photos@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Photos@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Trips.imageset/Trips@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha27/Resources/Checklist Icons/Trips@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.pbxproj" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.pbxproj"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.pbxproj"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.pbxproj"
diff --git "a/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"
new file mode 100755
index 0000000..043f0e6
--- /dev/null
+++ "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/contents.xcworkspacedata"	
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:Checklists.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/UserInterfaceState.xcuserstate"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/project.xcworkspace/xcuserdata/matthijs.xcuserdatad/WorkspaceSettings.xcsettings"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/Checklists.xcscheme"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists.xcodeproj/xcuserdata/matthijs.xcuserdatad/xcschemes/xcschememanagement.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/AllListsViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Base.lproj/Main.storyboard" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Base.lproj/Main.storyboard"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Base.lproj/Main.storyboard"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Base.lproj/Main.storyboard"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklist.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistItem.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Info.plist" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Info.plist"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Info.plist"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Info.plist"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Prefix.pch" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Prefix.pch"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Prefix.pch"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Checklists-Prefix.pch"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/ChecklistsAppDelegate.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/DataModel.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.h" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.h"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.h"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.h"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.m" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.m"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.m"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/IconPickerViewController.m"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/AppIcon.appiconset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Appointments@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Appointments@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Appointments@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Appointments.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Birthdays@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Birthdays@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Birthdays@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Birthdays.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Chores@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Chores@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Chores@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Chores.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Drinks@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Drinks@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Drinks.imageset/Drinks@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Folder@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Folder@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Folder.imageset/Folder@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Groceries@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Groceries@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Groceries.imageset/Groceries@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Inbox@2x.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Resources/Checklist Icons/Inbox@2x.png"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Inbox.imageset/Inbox@2x.png"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/LaunchImage.launchimage/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
similarity index 100%
rename from "iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
rename to "iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/Contents.json"
diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/No Icon.png" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/No Icon.imageset/No Icon.png"
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diff --git "a/iOS7/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Photos.imageset/Contents.json" "b/iOS Basic/iOS7+Objective-C/iOS Learning 2/source code/iOS \345\205\245\351\227\250 2/cha28(The End)/Checklists/Images.xcassets/Photos.imageset/Contents.json"
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diff --git a/iOS7/iOS Learning 3/ios 3/cha8/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations/AppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha12/MyLocations/MyLocations/AppDelegate.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha12/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha12/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha15/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha15/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha16/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha16/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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rename from iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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index 0000000..fe2b454
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@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+</Bucket>
diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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rename from iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/AppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/AppDelegate.h
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/AppDelegate.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/AppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/AppDelegate.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CategoryPickerViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CategoryPickerViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CategoryPickerViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CategoryPickerViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CurrentLocationViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CurrentLocationViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CurrentLocationViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/CurrentLocationViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/first.imageset/first.png b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/Images.xcassets/first.imageset/first.png
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/LocationDetailsViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/LocationDetailsViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/MyLocations-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/MyLocations-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocations/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/MyLocationsTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/MyLocationsTests.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha18/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+</Bucket>
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/AppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/AppDelegate.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/AppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/AppDelegate.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Base.lproj/Main.storyboard
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CategoryPickerViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CategoryPickerViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CategoryPickerViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CategoryPickerViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CurrentLocationViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CurrentLocationViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CurrentLocationViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/CurrentLocationViewController.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/HudView.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/HudView.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/HudView.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/HudView.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/Checkmark.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/Checkmark.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/second.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/Images.xcassets/second.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/LocationDetailsViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/LocationDetailsViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/LocationDetailsViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/LocationDetailsViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/MyLocations-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/MyLocations-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/MyLocations-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/MyLocations-Prefix.pch
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/SecondViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/SecondViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/SecondViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/SecondViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocations/main.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/MyLocationsTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/MyLocationsTests.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha19/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/DataModel.xcdatamodeld/DataModel.xcdatamodel/contents b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/DataModel.xcdatamodeld/DataModel.xcdatamodel/contents
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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index 0000000..fe2b454
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@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+</Bucket>
diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/AppDelegate.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/AppDelegate.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/AppDelegate.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/AppDelegate.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CategoryPickerViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CategoryPickerViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CurrentLocationViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CurrentLocationViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CurrentLocationViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/CurrentLocationViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/HudView.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/HudView.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/Checkmark.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/Checkmark.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/LaunchImage.launchimage/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/first.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/second.imageset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/Images.xcassets/second.imageset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/LocationDetailsViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/LocationDetailsViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/LocationDetailsViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/LocationDetailsViewController.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/MyLocations-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/MyLocations-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/MyLocations-Prefix.pch b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/MyLocations-Prefix.pch
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/SecondViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/SecondViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/SecondViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/SecondViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/main.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocations/main.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/MyLocationsTests-Info.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/MyLocationsTests.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/MyLocationsTests.m
similarity index 100%
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diff --git a/iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
similarity index 100%
rename from iOS7/iOS Learning 3/ios 3/cha20/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/DataModel.xcdatamodeld/DataModel.xcdatamodel/contents b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/DataModel.xcdatamodeld/DataModel.xcdatamodel/contents
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.pbxproj b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.pbxproj
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/WorkspaceSettings.xcsettings
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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index 0000000..fe2b454
--- /dev/null
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@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+</Bucket>
diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/xcschememanagement.plist
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/Base.lproj/Main.storyboard b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/Base.lproj/Main.storyboard
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CategoryPickerViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CategoryPickerViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CurrentLocationViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CurrentLocationViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CurrentLocationViewController.m b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/CurrentLocationViewController.m
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/HudView.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/HudView.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/Images.xcassets/AppIcon.appiconset/Contents.json
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/LocationDetailsViewController.h b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocations/LocationDetailsViewController.h
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diff --git a/iOS7/iOS Learning 3/ios 3/cha21/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha21/MyLocations/MyLocationsTests/en.lproj/InfoPlist.strings
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha22/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha22/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
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+   version = "2.0">
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rename from iOS7/iOS Learning 3/ios 3/cha7/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
rename to iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha7/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcschemes/MyLocations.xcscheme
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diff --git a/iOS7/iOS Learning 3/ios 3/cha8/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha8/MyLocations/MyLocations.xcodeproj/project.xcworkspace/xcuserdata/happybubsy.xcuserdatad/UserInterfaceState.xcuserstate
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diff --git a/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha8/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/iOS Basic/iOS7+Objective-C/iOS Learning 3/ios 3/cha8/MyLocations/MyLocations.xcodeproj/xcuserdata/happybubsy.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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diff --git a/iOS11/Projects/Resources/Images/SmallButton@2x.png b/iOS11/Projects/Resources/Images/SmallButton@2x.png
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deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
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-{
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-/* End PBXBuildFile section */
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-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
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-/* End PBXFileReference section */
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-/* Begin PBXNativeTarget section */
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-			buildRules = (
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-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
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-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
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-			attributes = {
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-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
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-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
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-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
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-			buildSettings = {
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-				CODE_SIGN_STYLE = Automatic;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
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-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
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-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
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-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
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-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
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-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 1bb2f68..0000000
Binary files a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha10/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 160e505..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,116 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha10/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha10/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index ee55cb6..0000000
--- a/iOS11/Projects/cha10/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewRound()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
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-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
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-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
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-		};
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-			buildSettings = {
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-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
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-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
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-			defaultConfigurationName = Release;
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-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
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-			buildConfigurations = (
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-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index b1342f1..0000000
Binary files a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha11/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha11/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index f715f6b..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,119 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                                <connections>
-                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha11/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha11/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 0df620b..0000000
--- a/iOS11/Projects/cha11/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewGame()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
-			);
-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
-		};
-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = dwarf;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				ENABLE_TESTABILITY = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
-				SDKROOT = iphoneos;
-				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-			};
-			name = Debug;
-		};
-		78F9BBA31F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
-			};
-			name = Release;
-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
-		78F9BBA61F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
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-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index dcf9e5d..0000000
Binary files a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha12/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha12/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index f715f6b..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,119 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                                <connections>
-                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha12/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha12/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 0df620b..0000000
--- a/iOS11/Projects/cha12/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewGame()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
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diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 2006588..0000000
Binary files a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha13/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png
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index db96a9c..0000000
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diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png
deleted file mode 100644
index f32b4a2..0000000
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diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png
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index 0782ffc..0000000
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deleted file mode 100644
index 4fc626e..0000000
Binary files a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png
deleted file mode 100644
index 3b4d9db..0000000
Binary files a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png
deleted file mode 100644
index 538a18c..0000000
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deleted file mode 100644
index 110b9c1..0000000
Binary files a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png
deleted file mode 100644
index f0ca880..0000000
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diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png b/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png
deleted file mode 100644
index 01d7379..0000000
Binary files a/iOS11/Projects/cha13/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 60f3fce..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,159 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <customFonts key="customFonts">
-        <array key="ArialRoundedMTBold.ttf">
-            <string>ArialRoundedMTBold</string>
-        </array>
-    </customFonts>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="pw3-hL-Gd1">
-                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="259" y="163" width="100" height="37"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
-                                <size key="titleShadowOffset" width="0.0" height="1"/>
-                                <state key="normal" title="Hit Me!" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <state key="highlighted" backgroundImage="Button-Highlighted"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="317" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="62" y="93" width="10" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="494" y="97" width="29" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="93" y="89" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="34" y="265" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
-                                <connections>
-                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="500" y="261" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="163" y="266" width="51" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="229" y="266" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="335" y="266" width="56" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="424" y="266" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-    <resources>
-        <image name="Background" width="568" height="320"/>
-        <image name="Button-Highlighted" width="100" height="37"/>
-        <image name="Button-Normal" width="100" height="37"/>
-        <image name="InfoButton" width="10" height="22"/>
-        <image name="SmallButton" width="32" height="32"/>
-        <image name="StartOverIcon" width="20" height="20"/>
-    </resources>
-</document>
diff --git a/iOS11/Projects/cha13/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha13/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 96f172e..0000000
--- a/iOS11/Projects/cha13/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        
-        super.viewDidLoad()
-        startNewGame()
-        
-        //设置滑动条的外观
-        
-       
-        let thumbImageNormal = #imageLiteral(resourceName: "SliderThumb-Normal")
-        slider.setThumbImage(thumbImageNormal, for: .normal)
-        
-        let thumbImageHighlighted = #imageLiteral(resourceName: "SliderThumb-Highlighted")
-        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
-        
-        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
-        
-        let trackLeftImage = #imageLiteral(resourceName: "SliderTrackLeft")
-        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
-        
-        let trackRightImage = #imageLiteral(resourceName: "SliderTrackRight")
-        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
-        
-       
-
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index d953d52..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,329 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78A9ADA11F984D1C002665CB /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A9ADA01F984D1C002665CB /* AboutViewController.swift */; };
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78A9ADA01F984D1C002665CB /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78A9ADA01F984D1C002665CB /* AboutViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
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diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index dffd8ce..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/AboutViewController.swift b/iOS11/Projects/cha14/BullsEye/BullsEye/AboutViewController.swift
deleted file mode 100644
index dfa922e..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye/AboutViewController.swift
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-//  AboutViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/19/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class AboutViewController: UIViewController {
-    
-    @IBOutlet weak var webView: UIWebView!
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-
-        // Do any additional setup after loading the view.
-
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    @IBAction func close(){
-        dismiss(animated:  true,completion: nil)
-    }
-
-
-}
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha14/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png
deleted file mode 100644
index db96a9c..0000000
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diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png
deleted file mode 100644
index f32b4a2..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png
deleted file mode 100644
index 79eaaaf..0000000
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diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/InfoButton@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/InfoButton@2x.png
deleted file mode 100644
index 0782ffc..0000000
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diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png
deleted file mode 100644
index 4fc626e..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png
deleted file mode 100644
index 3b4d9db..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png
deleted file mode 100644
index 538a18c..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png
deleted file mode 100644
index 110b9c1..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png
deleted file mode 100644
index f0ca880..0000000
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diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png b/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png
deleted file mode 100644
index 01d7379..0000000
Binary files a/iOS11/Projects/cha14/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 500508d..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,210 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <customFonts key="customFonts">
-        <array key="ArialRoundedMTBold.ttf">
-            <string>ArialRoundedMTBold</string>
-        </array>
-        <array key="HelveticaNeue.ttc">
-            <string>HelveticaNeue</string>
-        </array>
-    </customFonts>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="pw3-hL-Gd1">
-                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="259" y="163" width="100" height="37"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
-                                <size key="titleShadowOffset" width="0.0" height="1"/>
-                                <state key="normal" title="Hit Me!" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <state key="highlighted" backgroundImage="Button-Highlighted"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="317" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="62" y="93" width="10" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="494" y="97" width="29" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="93" y="89" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="34" y="265" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
-                                <connections>
-                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="500" y="261" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
-                                <connections>
-                                    <segue destination="FFw-3Q-Bn1" kind="presentation" modalTransitionStyle="flipHorizontal" id="zeD-P2-LL5"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="163" y="266" width="51" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="229" y="266" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="335" y="266" width="56" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="424" y="266" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-        <!--About View Controller-->
-        <scene sceneID="C0Y-mt-gXL">
-            <objects>
-                <viewController id="FFw-3Q-Bn1" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="kwn-cr-vks">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="2Le-Vv-dnv" userLabel="Background">
-                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="djn-a3-ejl">
-                                <rect key="frame" x="235" y="267" width="100" height="37"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Close" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.38039215686274508" green="0.019607843137254902" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <connections>
-                                    <action selector="close" destination="FFw-3Q-Bn1" eventType="touchUpInside" id="Yjz-oi-vcc"/>
-                                </connections>
-                            </button>
-                            <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" fixedFrame="YES" editable="NO" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="bmK-ty-Akw">
-                                <rect key="frame" x="48" y="20" width="488" height="225"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <color key="backgroundColor" white="1" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                                <string key="text">*** 王者打靶 ***
-
-欢迎体验由笨猫帝国为您打造的王者打靶游戏！游戏方式很简单，你只需要拖动界面中的滑动条就好了。
-
-你的目标是让滑动条的结点尽可能接近预设的分数，越接近表示你的好运指数越高。
-连续5次获得完美得分的玩家可以免费吃鸡！</string>
-                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                                <fontDescription key="fontDescription" name="HelveticaNeue" family="Helvetica Neue" pointSize="17"/>
-                                <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
-                            </textView>
-                        </subviews>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                        <viewLayoutGuide key="safeArea" id="Zvr-RC-Apr"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="Jtz-Sv-JUP" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="864.08450704225356" y="118.125"/>
-        </scene>
-    </scenes>
-    <resources>
-        <image name="Background" width="568" height="320"/>
-        <image name="Button-Highlighted" width="100" height="37"/>
-        <image name="Button-Normal" width="100" height="37"/>
-        <image name="InfoButton" width="10" height="22"/>
-        <image name="SmallButton" width="32" height="32"/>
-        <image name="StartOverIcon" width="20" height="20"/>
-    </resources>
-</document>
diff --git a/iOS11/Projects/cha14/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha14/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 96f172e..0000000
--- a/iOS11/Projects/cha14/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        
-        super.viewDidLoad()
-        startNewGame()
-        
-        //设置滑动条的外观
-        
-       
-        let thumbImageNormal = #imageLiteral(resourceName: "SliderThumb-Normal")
-        slider.setThumbImage(thumbImageNormal, for: .normal)
-        
-        let thumbImageHighlighted = #imageLiteral(resourceName: "SliderThumb-Highlighted")
-        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
-        
-        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
-        
-        let trackLeftImage = #imageLiteral(resourceName: "SliderTrackLeft")
-        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
-        
-        let trackRightImage = #imageLiteral(resourceName: "SliderTrackRight")
-        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
-        
-       
-
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index a5b21ab..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,333 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78A9ADA11F984D1C002665CB /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A9ADA01F984D1C002665CB /* AboutViewController.swift */; };
-		78A9ADA71F98588D002665CB /* BullsEye.html in Resources */ = {isa = PBXBuildFile; fileRef = 78A9ADA61F98588D002665CB /* BullsEye.html */; };
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78A9ADA01F984D1C002665CB /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
-		78A9ADA61F98588D002665CB /* BullsEye.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; path = BullsEye.html; sourceTree = "<group>"; };
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
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-		};
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-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index c985a8d..0000000
Binary files a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/AboutViewController.swift b/iOS11/Projects/cha15/BullsEye/BullsEye/AboutViewController.swift
deleted file mode 100644
index 2b9aae3..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye/AboutViewController.swift
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-//  AboutViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/19/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class AboutViewController: UIViewController {
-    
-    @IBOutlet weak var webView: UIWebView!
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-
-        // Do any additional setup after loading the view.
-        
-//        if let url = Bundle.main.url(forResource: "BullsEye",
-//                                     withExtension: "html"){
-//            if let htmlData = try? Data(contentsOf: url){
-//                let baseURL = URL(fileURLWithPath: Bundle.main.bundlePath)
-//                webView.load(htmlData, mimeType: "text/html",
-//                             textEncodingName: "UTF-8",
-//                             baseURL: baseURL)
-//            }
-//        }
-
-
-        let myURL = URL.init(string: "http://www.apple.com")
-        let request: URLRequest = URLRequest(url: myURL!)
-        webView.loadRequest(request)
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    @IBAction func close(){
-        dismiss(animated:  true,completion: nil)
-    }
-
-
-}
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha15/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Background.imageset/Background@2x.png
deleted file mode 100644
index db96a9c..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Highlighted.imageset/Button-Highlighted@2x.png
deleted file mode 100644
index f32b4a2..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/Button-Normal.imageset/Button-Normal@2x.png
deleted file mode 100644
index 79eaaaf..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/InfoButton@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/InfoButton.imageset/InfoButton@2x.png
deleted file mode 100644
index 0782ffc..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png
deleted file mode 100644
index 4fc626e..0000000
Binary files a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Normal.imageset/SliderThumb-Normal@2x.png
deleted file mode 100644
index 3b4d9db..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackLeft.imageset/SliderTrackLeft@2x.png
deleted file mode 100644
index 538a18c..0000000
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diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png
deleted file mode 100644
index 110b9c1..0000000
Binary files a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SliderTrackRight.imageset/SliderTrackRight@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png
deleted file mode 100644
index f0ca880..0000000
Binary files a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/SmallButton.imageset/SmallButton@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png b/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png
deleted file mode 100644
index 01d7379..0000000
Binary files a/iOS11/Projects/cha15/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png and /dev/null differ
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 317afb1..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,201 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <customFonts key="customFonts">
-        <array key="ArialRoundedMTBold.ttf">
-            <string>ArialRoundedMTBold</string>
-        </array>
-    </customFonts>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="pw3-hL-Gd1">
-                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="259" y="163" width="100" height="37"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
-                                <size key="titleShadowOffset" width="0.0" height="1"/>
-                                <state key="normal" title="Hit Me!" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                    <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <state key="highlighted" backgroundImage="Button-Highlighted"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="317" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="62" y="93" width="10" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="494" y="97" width="29" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="93" y="89" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="34" y="265" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
-                                <connections>
-                                    <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                </connections>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="500" y="261" width="32" height="32"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
-                                <connections>
-                                    <segue destination="FFw-3Q-Bn1" kind="presentation" modalTransitionStyle="flipHorizontal" id="zeD-P2-LL5"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="163" y="266" width="51" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="229" y="266" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="335" y="266" width="56" height="20"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="424" y="266" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                <nil key="highlightedColor"/>
-                                <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                <size key="shadowOffset" width="0.0" height="1"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-        <!--About View Controller-->
-        <scene sceneID="C0Y-mt-gXL">
-            <objects>
-                <viewController id="FFw-3Q-Bn1" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="kwn-cr-vks">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="2Le-Vv-dnv" userLabel="Background">
-                                <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="djn-a3-ejl">
-                                <rect key="frame" x="235" y="267" width="100" height="37"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Close" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.38039215686274508" green="0.019607843137254902" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <connections>
-                                    <action selector="close" destination="FFw-3Q-Bn1" eventType="touchUpInside" id="Yjz-oi-vcc"/>
-                                </connections>
-                            </button>
-                            <webView contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="7Rq-uE-l9o">
-                                <rect key="frame" x="38" y="12" width="495" height="237"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <color key="backgroundColor" red="0.36078431370000003" green="0.38823529410000002" blue="0.4039215686" alpha="0.0" colorSpace="custom" customColorSpace="sRGB"/>
-                            </webView>
-                        </subviews>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                        <viewLayoutGuide key="safeArea" id="Zvr-RC-Apr"/>
-                    </view>
-                    <connections>
-                        <outlet property="webView" destination="7Rq-uE-l9o" id="dyx-oi-WXB"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="Jtz-Sv-JUP" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="864.08450704225356" y="118.125"/>
-        </scene>
-    </scenes>
-    <resources>
-        <image name="Background" width="568" height="320"/>
-        <image name="Button-Highlighted" width="100" height="37"/>
-        <image name="Button-Normal" width="100" height="37"/>
-        <image name="InfoButton" width="10" height="22"/>
-        <image name="SmallButton" width="32" height="32"/>
-        <image name="StartOverIcon" width="20" height="20"/>
-    </resources>
-</document>
diff --git a/iOS11/Projects/cha15/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha15/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 96f172e..0000000
--- a/iOS11/Projects/cha15/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        
-        super.viewDidLoad()
-        startNewGame()
-        
-        //设置滑动条的外观
-        
-       
-        let thumbImageNormal = #imageLiteral(resourceName: "SliderThumb-Normal")
-        slider.setThumbImage(thumbImageNormal, for: .normal)
-        
-        let thumbImageHighlighted = #imageLiteral(resourceName: "SliderThumb-Highlighted")
-        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
-        
-        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
-        
-        let trackLeftImage = #imageLiteral(resourceName: "SliderTrackLeft")
-        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
-        
-        let trackRightImage = #imageLiteral(resourceName: "SliderTrackRight")
-        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
-        
-       
-
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
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deleted file mode 100644
index b5ce099..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,339 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		7880A9F81FA5D88E005884EC /* bgmusic.mp3 in Resources */ = {isa = PBXBuildFile; fileRef = 7880A9F71FA5D88D005884EC /* bgmusic.mp3 */; };
-		78A9ADA11F984D1C002665CB /* AboutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78A9ADA01F984D1C002665CB /* AboutViewController.swift */; };
-		78A9ADA71F98588D002665CB /* BullsEye.html in Resources */ = {isa = PBXBuildFile; fileRef = 78A9ADA61F98588D002665CB /* BullsEye.html */; };
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
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-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		7880A9F71FA5D88D005884EC /* bgmusic.mp3 */ = {isa = PBXFileReference; lastKnownFileType = audio.mp3; path = bgmusic.mp3; sourceTree = "<group>"; };
-		78A9ADA01F984D1C002665CB /* AboutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AboutViewController.swift; sourceTree = "<group>"; };
-		78A9ADA61F98588D002665CB /* BullsEye.html */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.html; path = BullsEye.html; sourceTree = "<group>"; };
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				7880A9F71FA5D88D005884EC /* bgmusic.mp3 */,
-				78A9ADA61F98588D002665CB /* BullsEye.html */,
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78A9ADA01F984D1C002665CB /* AboutViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				7880A9F81FA5D88E005884EC /* bgmusic.mp3 in Resources */,
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78A9ADA71F98588D002665CB /* BullsEye.html in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78A9ADA11F984D1C002665CB /* AboutViewController.swift in Sources */,
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
-			);
-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
-		};
-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = dwarf;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				ENABLE_TESTABILITY = YES;
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-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
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-			isa = XCBuildConfiguration;
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-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
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-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
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-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
-			};
-			name = Release;
-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 2K9XX73EFS;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
-		78F9BBA61F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				DEVELOPMENT_TEAM = 2K9XX73EFS;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index fcce04a..0000000
Binary files a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/AboutViewController.swift b/iOS11/Projects/cha16/BullsEye/BullsEye/AboutViewController.swift
deleted file mode 100644
index 2b9aae3..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/AboutViewController.swift
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-//  AboutViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/19/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class AboutViewController: UIViewController {
-    
-    @IBOutlet weak var webView: UIWebView!
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-
-        // Do any additional setup after loading the view.
-        
-//        if let url = Bundle.main.url(forResource: "BullsEye",
-//                                     withExtension: "html"){
-//            if let htmlData = try? Data(contentsOf: url){
-//                let baseURL = URL(fileURLWithPath: Bundle.main.bundlePath)
-//                webView.load(htmlData, mimeType: "text/html",
-//                             textEncodingName: "UTF-8",
-//                             baseURL: baseURL)
-//            }
-//        }
-
-
-        let myURL = URL.init(string: "http://www.apple.com")
-        let request: URLRequest = URLRequest(url: myURL!)
-        webView.loadRequest(request)
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    @IBAction func close(){
-        dismiss(animated:  true,completion: nil)
-    }
-
-
-}
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha16/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 0cc2196..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "images" : [
-    {
-      "size" : "20x20",
-      "idiom" : "iphone",
-      "filename" : "Icon-40.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "iphone",
-      "filename" : "Icon-60.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "iphone",
-      "filename" : "Icon-58.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "iphone",
-      "filename" : "Icon-87.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "iphone",
-      "filename" : "Icon-80.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "iphone",
-      "filename" : "Icon-120.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "60x60",
-      "idiom" : "iphone",
-      "filename" : "Icon-121.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "60x60",
-      "idiom" : "iphone",
-      "filename" : "Icon-180.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "ipad",
-      "filename" : "Icon-20.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "ipad",
-      "filename" : "Icon-41.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "ipad",
-      "filename" : "Icon-29.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "ipad",
-      "filename" : "Icon-59.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "ipad",
-      "filename" : "Icon-42.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "ipad",
-      "filename" : "Icon-81.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "76x76",
-      "idiom" : "ipad",
-      "filename" : "Icon-76.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "76x76",
-      "idiom" : "ipad",
-      "filename" : "Icon-152.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "83.5x83.5",
-      "idiom" : "ipad",
-      "filename" : "Icon-167.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "1024x1024",
-      "idiom" : "ios-marketing",
-      "filename" : "Icon-1024.png",
-      "scale" : "1x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-1024.png b/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Icon-1024.png
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diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png b/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/SliderThumb-Highlighted.imageset/SliderThumb-Highlighted@2x.png
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index f0ca880..0000000
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diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png b/iOS11/Projects/cha16/BullsEye/BullsEye/Assets.xcassets/Images/StartOverIcon.imageset/StartOverIcon@2x.png
deleted file mode 100644
index 01d7379..0000000
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diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index f7faf65..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,227 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_7" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13174"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <customFonts key="customFonts">
-        <array key="ArialRoundedMTBold.ttf">
-            <string>ArialRoundedMTBold</string>
-        </array>
-    </customFonts>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="667" height="375"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="pw3-hL-Gd1">
-                                <rect key="frame" x="0.0" y="0.0" width="667" height="375"/>
-                            </imageView>
-                            <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="mba-JJ-ctE">
-                                <rect key="frame" x="64.5" y="40.5" width="538" height="294"/>
-                                <subviews>
-                                    <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" reversesTitleShadowWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                        <rect key="frame" x="245" y="140" width="100" height="37"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="20"/>
-                                        <size key="titleShadowOffset" width="0.0" height="1"/>
-                                        <state key="normal" title="Hit Me!" backgroundImage="Button-Normal">
-                                            <color key="titleColor" red="0.37647058823529411" green="0.11764705882352941" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                            <color key="titleShadowColor" red="1" green="1" blue="1" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        </state>
-                                        <state key="highlighted" backgroundImage="Button-Highlighted"/>
-                                        <connections>
-                                            <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                        </connections>
-                                    </button>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                        <rect key="frame" x="78" y="20" width="317" height="20"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                        <rect key="frame" x="48" y="70" width="10" height="20"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                        <rect key="frame" x="480" y="74" width="29" height="20"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                        <rect key="frame" x="79" y="66" width="372" height="30"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <connections>
-                                            <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                        </connections>
-                                    </slider>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                        <rect key="frame" x="424" y="20" width="29" height="21"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                        <rect key="frame" x="20" y="242" width="32" height="32"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <state key="normal" image="StartOverIcon" backgroundImage="SmallButton"/>
-                                        <connections>
-                                            <action selector="startOver" destination="BYZ-38-t0r" eventType="touchUpInside" id="krd-IT-2cE"/>
-                                        </connections>
-                                    </button>
-                                    <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                        <rect key="frame" x="486" y="238" width="32" height="32"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <state key="normal" image="InfoButton" backgroundImage="SmallButton"/>
-                                        <connections>
-                                            <segue destination="FFw-3Q-Bn1" kind="presentation" modalTransitionStyle="flipHorizontal" id="zeD-P2-LL5"/>
-                                        </connections>
-                                    </button>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                        <rect key="frame" x="149" y="243" width="51" height="20"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                        <rect key="frame" x="215" y="243" width="84" height="21"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                        <rect key="frame" x="321" y="243" width="56" height="20"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.19607843137254902" green="0.19607843137254902" blue="0.19607843137254902" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                        <rect key="frame" x="410" y="243" width="32" height="21"/>
-                                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                        <fontDescription key="fontDescription" name="ArialRoundedMTBold" family="Arial Rounded MT Bold" pointSize="16"/>
-                                        <color key="textColor" red="0.99999600649999998" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <nil key="highlightedColor"/>
-                                        <color key="shadowColor" red="0.0" green="0.0" blue="0.0" alpha="0.5" colorSpace="custom" customColorSpace="sRGB"/>
-                                        <size key="shadowOffset" width="0.0" height="1"/>
-                                    </label>
-                                </subviews>
-                                <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
-                                <constraints>
-                                    <constraint firstAttribute="height" constant="294" id="5zT-6P-WLf"/>
-                                    <constraint firstAttribute="width" constant="538" id="yyz-pJ-jqz"/>
-                                </constraints>
-                            </view>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <constraints>
-                            <constraint firstItem="pw3-hL-Gd1" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="7Pr-bZ-voj"/>
-                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="pw3-hL-Gd1" secondAttribute="bottom" id="87V-5p-sMe"/>
-                            <constraint firstItem="mba-JJ-ctE" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="FOu-gn-iid"/>
-                            <constraint firstItem="mba-JJ-ctE" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="VUS-2N-ZOd"/>
-                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="pw3-hL-Gd1" secondAttribute="trailing" id="hS9-MN-beP"/>
-                            <constraint firstItem="pw3-hL-Gd1" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" id="nZo-Af-rcp"/>
-                        </constraints>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-        <!--About View Controller-->
-        <scene sceneID="C0Y-mt-gXL">
-            <objects>
-                <viewController id="FFw-3Q-Bn1" customClass="AboutViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="kwn-cr-vks">
-                        <rect key="frame" x="0.0" y="0.0" width="667" height="375"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="Background" translatesAutoresizingMaskIntoConstraints="NO" id="2Le-Vv-dnv" userLabel="Background">
-                                <rect key="frame" x="0.0" y="0.0" width="667" height="375"/>
-                            </imageView>
-                            <webView contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="7Rq-uE-l9o">
-                                <rect key="frame" x="20" y="20" width="627" height="290"/>
-                                <color key="backgroundColor" red="0.36078431370000003" green="0.38823529410000002" blue="0.4039215686" alpha="0.0" colorSpace="custom" customColorSpace="sRGB"/>
-                            </webView>
-                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="djn-a3-ejl">
-                                <rect key="frame" x="283" y="318" width="100" height="37"/>
-                                <state key="normal" title="Close" backgroundImage="Button-Normal">
-                                    <color key="titleColor" red="0.38039215686274508" green="0.019607843137254902" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                                </state>
-                                <connections>
-                                    <action selector="close" destination="FFw-3Q-Bn1" eventType="touchUpInside" id="Yjz-oi-vcc"/>
-                                </connections>
-                            </button>
-                        </subviews>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
-                        <constraints>
-                            <constraint firstItem="Zvr-RC-Apr" firstAttribute="bottom" secondItem="2Le-Vv-dnv" secondAttribute="bottom" id="0tL-ZJ-uyi"/>
-                            <constraint firstItem="2Le-Vv-dnv" firstAttribute="leading" secondItem="Zvr-RC-Apr" secondAttribute="leading" id="4tN-zZ-lSW"/>
-                            <constraint firstItem="2Le-Vv-dnv" firstAttribute="top" secondItem="Zvr-RC-Apr" secondAttribute="top" id="8eW-3W-Wds"/>
-                            <constraint firstItem="djn-a3-ejl" firstAttribute="centerX" secondItem="kwn-cr-vks" secondAttribute="centerX" id="Gzs-2v-cy1"/>
-                            <constraint firstItem="7Rq-uE-l9o" firstAttribute="leading" secondItem="Zvr-RC-Apr" secondAttribute="leading" constant="20" id="Jgi-bX-qzf"/>
-                            <constraint firstItem="Zvr-RC-Apr" firstAttribute="trailing" secondItem="7Rq-uE-l9o" secondAttribute="trailing" constant="20" id="U0b-bp-gRt"/>
-                            <constraint firstItem="djn-a3-ejl" firstAttribute="top" secondItem="7Rq-uE-l9o" secondAttribute="bottom" constant="8" id="UFf-A7-fdr"/>
-                            <constraint firstItem="7Rq-uE-l9o" firstAttribute="top" secondItem="Zvr-RC-Apr" secondAttribute="top" constant="20" id="bYJ-L6-qjL"/>
-                            <constraint firstItem="Zvr-RC-Apr" firstAttribute="trailing" secondItem="2Le-Vv-dnv" secondAttribute="trailing" id="lm2-3J-0jK"/>
-                            <constraint firstItem="Zvr-RC-Apr" firstAttribute="bottom" secondItem="djn-a3-ejl" secondAttribute="bottom" constant="20" id="w5R-Qu-cQY"/>
-                        </constraints>
-                        <viewLayoutGuide key="safeArea" id="Zvr-RC-Apr"/>
-                    </view>
-                    <connections>
-                        <outlet property="webView" destination="7Rq-uE-l9o" id="dyx-oi-WXB"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="Jtz-Sv-JUP" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="864.08450704225356" y="118.125"/>
-        </scene>
-    </scenes>
-    <resources>
-        <image name="Background" width="568" height="320"/>
-        <image name="Button-Highlighted" width="100" height="37"/>
-        <image name="Button-Normal" width="100" height="37"/>
-        <image name="InfoButton" width="10" height="22"/>
-        <image name="SmallButton" width="32" height="32"/>
-        <image name="StartOverIcon" width="20" height="20"/>
-    </resources>
-</document>
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/BullsEye.html b/iOS11/Projects/cha16/BullsEye/BullsEye/BullsEye.html
deleted file mode 100644
index c04431a..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/BullsEye.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-<title>Bull's Eye</title>
-<meta charset="utf-8">
-<style type="text/css">
-html { background: #faeecd; }
-body { color: #000; font: 16px "Arial Rounded MT Bold", Helvetica; }
-h1 { text-align: center; color: rgb(96, 30, 0); font-size: 24px; font-weight: bold; }
-</style>
-</head>
-<body>
-
-<h1>★ Bull's Eye ★</h1>
-
-<p>This is the awesome game of Bull's Eye where you can win points and earn fame by dragging a slider.</p>
-
-<p>Your goal is to place the slider as close as possible to the target value. The closer you are, the more points you score.</p>
-
-<p style="text-align:center"><em>Enjoy!</em></p>
-
-</body>
-</html>
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha16/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index de69940..0000000
--- a/iOS11/Projects/cha16/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,160 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-import QuartzCore
-import AVFoundation
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-    
-    //for music
-    var audioPlayer: AVAudioPlayer!
-
-    override func viewDidLoad() {
-        
-        super.viewDidLoad()
-        startNewGame()
-        
-        //设置滑动条的外观
-        
-       
-        let thumbImageNormal = #imageLiteral(resourceName: "SliderThumb-Normal")
-        slider.setThumbImage(thumbImageNormal, for: .normal)
-        
-        let thumbImageHighlighted = #imageLiteral(resourceName: "SliderThumb-Highlighted")
-        slider.setThumbImage(thumbImageHighlighted, for: .highlighted)
-        
-        let insets = UIEdgeInsets(top: 0, left: 14, bottom: 0, right: 14)
-        
-        let trackLeftImage = #imageLiteral(resourceName: "SliderTrackLeft")
-        let trackLeftResizable = trackLeftImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMinimumTrackImage(trackLeftResizable, for: .normal)
-        
-        let trackRightImage = #imageLiteral(resourceName: "SliderTrackRight")
-        let trackRightResizable = trackRightImage.resizableImage(withCapInsets: insets)
-        
-        slider.setMaximumTrackImage(trackRightResizable, for: .normal)
-        
-       //play background music
-        playBgMusic()
-
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    //play background music
-    func playBgMusic(){
-        
-        let musicPath = Bundle.main.path(forResource: "bgmusic", ofType: "mp3")
-        let url = URL.init(fileURLWithPath: musicPath!)
-        
-        do{
-            audioPlayer = try AVAudioPlayer(contentsOf: url)
-        }catch _{
-            audioPlayer = nil
-        }
-        
-        audioPlayer.numberOfLoops = -1
-        audioPlayer.prepareToPlay()
-        audioPlayer.play()
-        
-        
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-    
-    func startNewGame() {
-        score = 0
-        round = 0
-        startNewRound()
-        
-        //add crossfade effects
-        let transition = CATransition()
-        transition.type = kCATransitionFade
-        transition.duration = 1
-        transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut)
-        
-        view.layer.add(transition,forKey: nil)
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        var points = 100 - difference
-        
-        
-        //添加以下代码对玩家的表现作出评价~
-        let title: String
-//        let title = ""
-        if difference == 0 {
-            title = "运气逆天！赶紧去买注彩票吧！"
-            points += 100
-        }else if difference < 5 {
-            title = "太棒了！差一点就到了！"
-            if(difference == 1){
-                points += 50
-            }
-        }else if difference < 10 {
-            title = "很不错！继续努力！"
-        }else {
-            title = "差太远了，君在长江头，我在长江尾~"
-        }
-        
-        score += points
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title: title,
-                                      message: mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: {action in
-                                                                            self.startNewRound()
-                                                                        })
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-    
-    @IBAction func startOver(){
-        startNewGame()
-    }
-}
-
diff --git a/iOS11/Projects/cha16/BullsEye/BullsEye/bgmusic.mp3 b/iOS11/Projects/cha16/BullsEye/BullsEye/bgmusic.mp3
deleted file mode 100644
index b8ce327..0000000
Binary files a/iOS11/Projects/cha16/BullsEye/BullsEye/bgmusic.mp3 and /dev/null differ
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
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-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 525db05..0000000
Binary files a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha2/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 0c9af8d..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="portrait">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="38" y="253" width="245" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="恭喜梅西率阿根廷晋级俄罗斯世界杯"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha2/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha2/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 03045a9..0000000
--- a/iOS11/Projects/cha2/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-
-    @IBAction func showAlert(){
-        
-        let alert = UIAlertController(title:"Hello Russia",
-                                      message:"梅西上演帽子戏法拯救阿根廷",
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"2018年不再无聊",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-    }
-    
-
-}
-
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
-			);
-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
-		};
-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = dwarf;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				ENABLE_TESTABILITY = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
-				SDKROOT = iphoneos;
-				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-			};
-			name = Debug;
-		};
-		78F9BBA31F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
-			};
-			name = Release;
-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
-		78F9BBA61F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 90bd479..0000000
Binary files a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha3/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
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-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
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-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
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-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index f02a7cf..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="186" y="145" width="245" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="恭喜梅西率阿根廷晋级俄罗斯世界杯"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha3/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha3/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 03045a9..0000000
--- a/iOS11/Projects/cha3/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-
-    @IBAction func showAlert(){
-        
-        let alert = UIAlertController(title:"Hello Russia",
-                                      message:"梅西上演帽子戏法拯救阿根廷",
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"2018年不再无聊",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-    }
-    
-
-}
-
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
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-			runOnlyForDeploymentPostprocessing = 0;
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-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
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-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
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-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
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-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
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-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
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-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
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-			isa = XCBuildConfiguration;
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-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
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-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
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-				CLANG_WARN_EMPTY_BODY = YES;
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = dwarf;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
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-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
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-					"$(inherited)",
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-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
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-				CLANG_WARN_COMMA = YES;
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-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
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-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
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-				CODE_SIGN_IDENTITY = "iPhone Developer";
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-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
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-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
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-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
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-				SWIFT_VERSION = 4.0;
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-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
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-				INFOPLIST_FILE = BullsEye/Info.plist;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
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-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 0391208..0000000
Binary files a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha4/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 1495fef..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,110 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha4/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha4/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 9182b67..0000000
--- a/iOS11/Projects/cha4/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    var currentValue: Int = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-
-    @IBAction func showAlert(){
-        
-        let alert = UIAlertController(title:"Hello Russia",
-                                      message:"梅西上演帽子戏法拯救阿根廷",
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"2018年不再无聊",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-    }
-}
-
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
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-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
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-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
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-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
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-			};
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-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
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-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index d3fd48c..0000000
Binary files a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha5/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 1495fef..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,110 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="50" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha5/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha5/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 6af9ca8..0000000
--- a/iOS11/Projects/cha5/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    var currentValue: Int = 50
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-
-    @IBAction func showAlert(){
-        
-        let mesage = "滑动条的当前数值是：\(currentValue)"
-        
-        let alert = UIAlertController(title:"Hello Messi",
-                                      message:mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
-			);
-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
-		};
-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
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-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "iPhone Developer";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = dwarf;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				ENABLE_TESTABILITY = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
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-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
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-		78F9BBA31F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
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-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
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-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
-			};
-			name = Release;
-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
-		78F9BBA61F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 765165b..0000000
Binary files a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha6/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 680ef52..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,113 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha6/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha6/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 7f456d8..0000000
--- a/iOS11/Projects/cha6/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    
-    var currentValue: Int = 50
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        currentValue = lroundf(slider.value)
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-
-    @IBAction func showAlert(){
-        
-        let mesage = "滑动条的当前数值是：\(currentValue)"
-        
-        let alert = UIAlertController(title:"Hello Messi",
-                                      message:mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
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-
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
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-				CODE_SIGN_IDENTITY = "iPhone Developer";
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-				ENABLE_STRICT_OBJC_MSGSEND = YES;
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-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
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-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
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-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
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-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
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-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
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-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
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-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
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-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index 2a15460..0000000
Binary files a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha7/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 01504fa..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,114 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha7/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha7/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index 8e4549f..0000000
--- a/iOS11/Projects/cha7/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    
-    var currentValue: Int = 50
-    var targetValue: Int = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewRound()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-    }
-    
-    func startNewRound() {
-        
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-
-    @IBAction func showAlert(){
-        
-        let mesage = "滑动条的当前数值是：\(currentValue)" +
-                     "\n目标数值是： \(targetValue)"
-        
-        let alert = UIAlertController(title:"Hello Messi",
-                                      message:mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-        
-        startNewRound()
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
-		78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXFileReference section */
-		78F9BB921F8DB99A004ED5D9 /* BullsEye.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BullsEye.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
-		78F9BB971F8DB99A004ED5D9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
-		78F9BB9A1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
-		78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
-		78F9BB9F1F8DB99A004ED5D9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		78F9BBA11F8DB99A004ED5D9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		78F9BB8F1F8DB99A004ED5D9 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		78F9BB891F8DB99A004ED5D9 = {
-			isa = PBXGroup;
-			children = (
-				78F9BB941F8DB99A004ED5D9 /* BullsEye */,
-				78F9BB931F8DB99A004ED5D9 /* Products */,
-			);
-			sourceTree = "<group>";
-		};
-		78F9BB931F8DB99A004ED5D9 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB921F8DB99A004ED5D9 /* BullsEye.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-		78F9BB941F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXGroup;
-			children = (
-				78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */,
-				78F9BB971F8DB99A004ED5D9 /* ViewController.swift */,
-				78F9BB991F8DB99A004ED5D9 /* Main.storyboard */,
-				78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */,
-				78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */,
-				78F9BBA11F8DB99A004ED5D9 /* Info.plist */,
-			);
-			path = BullsEye;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		78F9BB911F8DB99A004ED5D9 /* BullsEye */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */;
-			buildPhases = (
-				78F9BB8E1F8DB99A004ED5D9 /* Sources */,
-				78F9BB8F1F8DB99A004ED5D9 /* Frameworks */,
-				78F9BB901F8DB99A004ED5D9 /* Resources */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = BullsEye;
-			productName = BullsEye;
-			productReference = 78F9BB921F8DB99A004ED5D9 /* BullsEye.app */;
-			productType = "com.apple.product-type.application";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		78F9BB8A1F8DB99A004ED5D9 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastSwiftUpdateCheck = 0900;
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = eseedo;
-				TargetAttributes = {
-					78F9BB911F8DB99A004ED5D9 = {
-						CreatedOnToolsVersion = 9.0;
-						ProvisioningStyle = Automatic;
-					};
-				};
-			};
-			buildConfigurationList = 78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */;
-			compatibilityVersion = "Xcode 8.0";
-			developmentRegion = en;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-				Base,
-			);
-			mainGroup = 78F9BB891F8DB99A004ED5D9;
-			productRefGroup = 78F9BB931F8DB99A004ED5D9 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				78F9BB911F8DB99A004ED5D9 /* BullsEye */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXResourcesBuildPhase section */
-		78F9BB901F8DB99A004ED5D9 /* Resources */ = {
-			isa = PBXResourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BBA01F8DB99A004ED5D9 /* LaunchScreen.storyboard in Resources */,
-				78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */,
-				78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXResourcesBuildPhase section */
-
-/* Begin PBXSourcesBuildPhase section */
-		78F9BB8E1F8DB99A004ED5D9 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */,
-				78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin PBXVariantGroup section */
-		78F9BB991F8DB99A004ED5D9 /* Main.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9A1F8DB99A004ED5D9 /* Base */,
-			);
-			name = Main.storyboard;
-			sourceTree = "<group>";
-		};
-		78F9BB9E1F8DB99A004ED5D9 /* LaunchScreen.storyboard */ = {
-			isa = PBXVariantGroup;
-			children = (
-				78F9BB9F1F8DB99A004ED5D9 /* Base */,
-			);
-			name = LaunchScreen.storyboard;
-			sourceTree = "<group>";
-		};
-/* End PBXVariantGroup section */
-
-/* Begin XCBuildConfiguration section */
-		78F9BBA21F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
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-				CODE_SIGN_IDENTITY = "iPhone Developer";
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-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
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-		};
-		78F9BBA31F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_NONNULL = YES;
-				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
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-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
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-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
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-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALIDATE_PRODUCT = YES;
-			};
-			name = Release;
-		};
-		78F9BBA51F8DB99A004ED5D9 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Debug;
-		};
-		78F9BBA61F8DB99A004ED5D9 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
-				CODE_SIGN_STYLE = Automatic;
-				INFOPLIST_FILE = BullsEye/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				PRODUCT_BUNDLE_IDENTIFIER = com.icode.BullsEye;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.0;
-				TARGETED_DEVICE_FAMILY = "1,2";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		78F9BB8D1F8DB99A004ED5D9 /* Build configuration list for PBXProject "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA21F8DB99A004ED5D9 /* Debug */,
-				78F9BBA31F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		78F9BBA41F8DB99A004ED5D9 /* Build configuration list for PBXNativeTarget "BullsEye" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				78F9BBA51F8DB99A004ED5D9 /* Debug */,
-				78F9BBA61F8DB99A004ED5D9 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index a90b325..0000000
Binary files a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha8/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 01504fa..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,114 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha8/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha8/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index b94e553..0000000
--- a/iOS11/Projects/cha8/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,75 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    
-    var currentValue: Int = 50
-    var targetValue: Int = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewRound()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-    }
-    
-    func startNewRound() {
-        
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-
-    @IBAction func showAlert(){
-        
-        var difference: Int
-        if currentValue > targetValue{
-            
-            difference = currentValue - targetValue
-        }else if targetValue > currentValue{
-            difference = targetValue - currentValue
-        }else{
-            difference = 0
-        }
-        
-        let mesage = "滑动条的当前数值是：\(currentValue)" +
-                     "\n目标数值是： \(targetValue)" +
-                     "\n两者的差值是： \(difference)"
-        
-        let alert = UIAlertController(title:"Hello Messi",
-                                      message:mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-        
-        startNewRound()
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj b/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj
deleted file mode 100644
index e3d92fa..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.pbxproj
+++ /dev/null
@@ -1,325 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		78F9BB961F8DB99A004ED5D9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB951F8DB99A004ED5D9 /* AppDelegate.swift */; };
-		78F9BB981F8DB99A004ED5D9 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 78F9BB971F8DB99A004ED5D9 /* ViewController.swift */; };
-		78F9BB9B1F8DB99A004ED5D9 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB991F8DB99A004ED5D9 /* Main.storyboard */; };
-		78F9BB9D1F8DB99A004ED5D9 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 78F9BB9C1F8DB99A004ED5D9 /* Assets.xcassets */; };
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-		};
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-
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-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 78F9BB8A1F8DB99A004ED5D9 /* Project object */;
-}
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate b/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate
deleted file mode 100644
index de30c8d..0000000
Binary files a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/project.xcworkspace/xcuserdata/eseedo.xcuserdatad/UserInterfaceState.xcuserstate and /dev/null differ
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist b/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index e84f039..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye.xcodeproj/xcuserdata/eseedo.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>BullsEye.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/AppDelegate.swift b/iOS11/Projects/cha9/BullsEye/BullsEye/AppDelegate.swift
deleted file mode 100644
index c3f9eca..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye/AppDelegate.swift
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-//  AppDelegate.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-
-    var window: UIWindow?
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    func applicationWillResignActive(_ application: UIApplication) {
-        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
-        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
-    }
-
-    func applicationDidEnterBackground(_ application: UIApplication) {
-        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
-        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
-    }
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
-    }
-
-    func applicationDidBecomeActive(_ application: UIApplication) {
-        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
-    }
-
-    func applicationWillTerminate(_ application: UIApplication) {
-        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
-    }
-
-
-}
-
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json b/iOS11/Projects/cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
deleted file mode 100644
index 1d060ed..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "20x20",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "20x20",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "29x29",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "40x40",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "76x76",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "ipad",
-      "size" : "83.5x83.5",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}
\ No newline at end of file
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard b/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
deleted file mode 100644
index f83f6fd..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/LaunchScreen.storyboard
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard b/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard
deleted file mode 100644
index 160e505..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye/Base.lproj/Main.storyboard
+++ /dev/null
@@ -1,116 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13196" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
-    <device id="retina4_0" orientation="landscape">
-        <adaptation id="fullscreen"/>
-    </device>
-    <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13173"/>
-        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
-        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="BullsEye" customModuleProvider="target" sceneMemberID="viewController">
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="568" height="320"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="VtN-2W-guX">
-                                <rect key="frame" x="284" y="145" width="50" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Hit Me!"/>
-                                <connections>
-                                    <action selector="showAlert" destination="BYZ-38-t0r" eventType="touchUpInside" id="g2m-Ps-Vx9"/>
-                                </connections>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Put the Bull's Eye as close as you can  to:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="oyS-o9-GtJ">
-                                <rect key="frame" x="92" y="43" width="335" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="1" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="3Qg-8v-trx">
-                                <rect key="frame" x="66" y="80" width="15" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="lyC-Qe-ONZ">
-                                <rect key="frame" x="498" y="84" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <slider opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" value="25" minValue="1" maxValue="100" translatesAutoresizingMaskIntoConstraints="NO" id="ITh-V2-JWX">
-                                <rect key="frame" x="97" y="76" width="372" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <connections>
-                                    <action selector="sliderMoved:" destination="BYZ-38-t0r" eventType="valueChanged" id="8Ke-hl-Hdb"/>
-                                </connections>
-                            </slider>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="srK-ZM-gFK">
-                                <rect key="frame" x="46" y="220" width="71" height="30"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <state key="normal" title="Start Over"/>
-                            </button>
-                            <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="infoLight" showsTouchWhenHighlighted="YES" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="iQk-vc-Hf8">
-                                <rect key="frame" x="501" y="225" width="22" height="22"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </button>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Score:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="en0-t2-dHb">
-                                <rect key="frame" x="159" y="225" width="50" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="99999999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Af5-B1-g2Q">
-                                <rect key="frame" x="225" y="225" width="84" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="Round:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="t3v-NE-Duo">
-                                <rect key="frame" x="331" y="225" width="54" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="999" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="at9-hD-PLY">
-                                <rect key="frame" x="420" y="225" width="32" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="100" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="9Yz-AT-slu">
-                                <rect key="frame" x="438" y="43" width="29" height="21"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                                <nil key="textColor"/>
-                                <nil key="highlightedColor"/>
-                            </label>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
-                    </view>
-                    <connections>
-                        <outlet property="roundLabel" destination="at9-hD-PLY" id="qAh-OF-Gr6"/>
-                        <outlet property="scoreLabel" destination="Af5-B1-g2Q" id="b7g-N9-9QO"/>
-                        <outlet property="slider" destination="ITh-V2-JWX" id="Kn7-58-7ga"/>
-                        <outlet property="targetLabel" destination="9Yz-AT-slu" id="qM4-tB-9Rb"/>
-                    </connections>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="116.19718309859155" y="97.5"/>
-        </scene>
-    </scenes>
-</document>
diff --git a/iOS11/Projects/cha9/BullsEye/BullsEye/ViewController.swift b/iOS11/Projects/cha9/BullsEye/BullsEye/ViewController.swift
deleted file mode 100644
index e93a6ee..0000000
--- a/iOS11/Projects/cha9/BullsEye/BullsEye/ViewController.swift
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-//  ViewController.swift
-//  BullsEye
-//
-//  Created by eseedo on 10/11/17.
-//  Copyright © 2017 eseedo. All rights reserved.
-//
-
-import UIKit
-
-class ViewController: UIViewController {
-    
-    @IBOutlet weak var slider: UISlider!
-    @IBOutlet weak var targetLabel: UILabel!
-    @IBOutlet weak var scoreLabel: UILabel!
-    @IBOutlet weak var roundLabel: UILabel!
-    
-    var currentValue = 50
-    var targetValue = 0
-    var score = 0
-    var round = 0
-
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        startNewRound()
-    }
-
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-        // Dispose of any resources that can be recreated.
-    }
-    
-    func updateLabels(){
-        targetLabel.text = String(targetValue)
-        scoreLabel.text = String(score)
-        roundLabel.text = String(round)
-    }
-    
-    func startNewRound() {
-        round += 1
-        targetValue = 1 + Int (arc4random_uniform(100))
-        currentValue = 50
-        slider.value = Float(currentValue)
-        updateLabels()
-    }
-
-    @IBAction func showAlert(){
-        
-        let difference = abs(targetValue - currentValue)
-        let points = 100 - difference
-        score += points
-        
-        let mesage = "大家好，给大家介绍一下我的得分，是 \(points) 分"
-        
-        let alert = UIAlertController(title:"Hello Messi",
-                                      message:mesage,
-                                      preferredStyle: .alert)
-        let action = UIAlertAction(title:"ok",style: .default,handler: nil)
-        alert.addAction(action)
-        
-        present(alert, animated: true, completion: nil)
-        
-        startNewRound()
-    }
-    
-
-    @IBAction func sliderMoved(_ slider: UISlider){
-        
-        print("滑动条的当前数值是： \(slider.value)")
-        currentValue = lroundf(slider.value)
-    }
-}
-
diff --git a/iOS11/iOS11.zip b/iOS11/iOS11.zip
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diff --git "a/iOS12/iOS12\347\211\210\346\234\254\346\233\264\346\226\260\350\257\264\346\230\216.pdf" "b/iOS12/iOS12\347\211\210\346\234\254\346\233\264\346\226\260\350\257\264\346\230\216.pdf"
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