标签：
python 字符串
1、索引
>>> s = range(1,10) >>> s [1, 2, 3, 4, 5, 6, 7, 8, 9] >>> s[0] 1 >>> s[5] 6 >>> s[-1] 9 >>> s[-3] 7
2、切片
>>> s = range(1,10) >>> s [1, 2, 3, 4, 5, 6, 7, 8, 9] >>> s[1:3] [2, 3] >>> s[0:3] [1, 2, 3] >>> s[:3] [1, 2, 3] >>> s[-3:-1] [7, 8] >>> s[-3:] [7, 8, 9] >>> s[1:7:2] [2, 4, 6] >>> s[::2] [1, 3, 5, 7, 9]
3、抑制字符串转义
问题：
>>> s = ‘C:\test1\notstr\vaaa.txt‘ >>> print s C: est1 otstr aaa.txt
解决办法1：
>>> s = ‘C:\\test1\\notstr\\vaaa.txt‘ >>> print s C:\test1\notstr\vaaa.txt
解决办法2：
>>> s = r‘C:\test1\notstr\vaaa.txt‘ >>> print s C:\test1\notstr\vaaa.txt
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原文地址：http://www.cnblogs.com/shetunxiang/p/4660247.html
