Python中input()函数与raw_input()函数的区别

input()函数和raw_input()函数都是Python内建函数

Python 2.x中raw_input()函数帮助文档

Help on built-in function raw_input in module __builtin__:raw_input(...)    raw_input([prompt]) -> string    Read a string from standard input.  The trailing newline is stripped.    If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.    On Unix, GNU readline is used if enabled.  The prompt string, if given,    is printed without a trailing newline before reading.

Python 2.x中input()函数帮助文档

Help on built-in function input in module __builtin__:input(...)    input([prompt]) -> value    Equivalent to eval(raw_input(prompt)).

raw_input()函数接受用户输入时把输入作为字符串返回，input()函数期望用户输入正确的数据类型，其实input()函数是借用raw_input()函数来实现的，在Python 2.x中最好直接使用raw_input()函数来处理用户的输入

>>> name=input("what is your name? ")what is your name? Clef #期待输入字符串，并且同时要输入引号Traceback (most recent call last):  File "<stdin>", line 1, in <module>  File "<string>", line 1, in <module>NameError: name 'Clef' is not defined>>> name=input("what is your name? ")what is your name? 'Clef'>>> name'Clef'>>> name=raw_input("what is your name? ") #用raw_input()函数来接受用户输入的时候，就不用同时输入引号what is your name? Clef>>> name'Clef'

Python 3.0中已经没有raw_input()函数帮助文档，因为在Python 3.x中已经没有raw_input()函数，已经把原来在Python 2.x中的raw_input()函数重命名为了input()函数

Python 3.0中input()函数帮助文档

Help on built-in function input in module builtins:input(...)    input([prompt]) -> string    Read a string from standard input.  The trailing newline is stripped.    If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.    On Unix, GNU readline is used if enabled.  The prompt string, if given,    is printed without a trailing newline before reading.