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"""

if else 语句

"""

flag = True

if flag:

print("你没有危险物品")

print("if语句结束，缩进代表是不是和if为一体")

my_password = "12345"

if my_password == "12345":

print("密码正确")

else:

print("密码错误")

a = 10

b = 20

if a >= b:

print("a大于等于b")

else:

print("a不大于等于b")

"""

逻辑运算符：与或非, and or not

"""

my_name = "admin"

my_passwd = "12345"

if (my_name == "admin") and (my_passwd == "12345"):

print("登陆成功，用户名和密码都正确")

if (my_name != "admin") or (my_passwd != "12345"):

print("用户名或者密码错误")

is_man = False

is_woman = not True

if not is_man:

print("假男人")