python input 与raw_input函数的区别

转自：http://blog.csdn.net/sruru/article/details/7790436

以前没有深入考虑过raw_input与input函数的区别，所以一直比较困惑，今天测试之后，有了较为深入了解，记录如下

>>> user = raw_input("Enter your name:")

Enter your name:scr

>>> user

'scr'

>>> user = raw_input("Enter your name:")

Enter your name:

>>> user

''

>>> user = input("Enter your name,please!")

Enter your name,please!

>>> user

>>> user = input("Enter your name,please!")

Enter your name,please!"scr"

>>> user

'scr'

>>> user = input("Enter your name,please!")

Enter your name,please!scr

Traceback (most recent call last):

File "<pyshell#67>", line , in <module>

user = input("Enter your name,please!")

File "<string>", line , in <module>

NameError: name 'scr' is not defined

>>>

总结：

raw_input更符合用户输入的习惯，把任何用户输入都转换成字符串存储，在需要其它类型的数据时，调用相应的函数进行转换;
input用户输入什么就存储什么，所以用户输入必须符合python语法要求，否则会出错，例如

>>> user = input("Enter your name,please!")

Enter your name,please!scr

Traceback (most recent call last):

File "<pyshell#67>", line , in <module>

user = input("Enter your name,please!")

File "<string>", line , in <module>

NameError: name 'scr' is not defined

>>>