changkun
diff --git a/‎book/zh-cn/03-runtime.md
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+2-2Lines changed: 2 additions & 2 deletions b/‎book/zh-cn/03-runtime.md
Copy file name to clipboardExpand all lines: book/zh-cn/03-runtime.md
+2-2Lines changed: 2 additions & 2 deletions
@@ -397,8 +397,8 @@ int main() {
 
 int main() {
 
-std::string str = "Hello world.";
-std::vector<std::string> v;
+    std::string str = "Hello world.";
+    std::vector<std::string> v;
 
     // 将使用 push_back(const T&), 即产生拷贝行为
     v.push_back(str);