1、>>> myteacher = 'big'

yourteacher = myteacher

myteacher = 'small'

print（yourteacher）

→big

错误答案：myteacher

2、>>> first = 100

second = '100'

first = second

print (first)

→100

错误答案：‘100’

3、除了\进行转义，还有什么方法

str = "Let's go!"

print(str)

→Let’s go!

双引号和三引号（"""..."""）中可以包含单引号，三引号('''...''')可以包含双引号，而不需要转义