交互与注释

用户进行交互

读取用户输入

name = input("What is your name?")

print("Hello " +(,) name )

执行脚本就会发现，程序会等待你输入姓名后再往下继续走。

可以让用户输入多个信息，如下

name = input("What is your name?")
age = input("How old are you?")
hometown = input("Where is your hometown?")

print("Hello ",name , "your are ", age , "years old, you came from",hometown)

执行输出

What is your name?Tom
How old are you?22
Where is your hometown?ShangHai
Hello Tom your are  22 years old, you came from ShangHai

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注释

增加代码的可读性。

代码注释分单行和多行注释， 单行注释用#，多行注释可以用三对双引号""" """

代码注释原则:

1. 不用全部加注释，只需要在自己觉得重要或不好理解的部分加注释即可
2. 注释可以用中文或英文，但绝对不要拼音