Python的数据类型 字符串和编码

关于ASCII 编码的错误，就在python 脚本上面加入这一行

# -*- coding: utf-8 -*-

字符串 %s  整数 %d  浮点 %f  原样打印 %r

>>> print 'Hi, %s, you have $%d.' % ('digua', 1000000)

Hi, digua, you have $1000000.

>>> print '%r is not %r' % ('tudou','digua')

'tudou' is not 'digua'

左对齐和右对齐20个字符

>>> print '%-20s %s' % ('digua','tudou')

digua                tudou

>>> print '%20s %s' % ('digua','tudou')

               digua tudou

raw_input用法

>>> name = raw_input("please input your name:")

please input your name:digua

>>> name

'digua'

>>> 

>>> 

>>> num = int(raw_input("please input your age:"))

please input your age:18

>>> num

18

>>> type(num)

<type 'int'>

>>> type(name)

<type 'str'>