【Python 第5课】变量

chris

为什么在第二行，如果输入双引号，就会报错，只能用单引号么

chris

Hello World!
Who are you?
123.456
Who do you think I am

Traceback (most recent call last):
  File "C:\Python27\chris.py", line 8, in <module>
    you = input()
TypeError: 'tuple' object is not callable
>>>
这是报错的