python的字符串有众多方法，可以在doc文档中查看
示例
转换开头字母为大写
c1="welcome to my python" >>> c1.capitalize() ‘Welcome to my python‘
>>> print(c1) welcome to my python >>> c2=c1.capitalize() >>> print(c2) Welcome to my python
统计出现次数
>>> c1.count(‘o‘) 3
find查询
>>> hw=‘hello world‘ >>> hw ‘hello world‘ >>> hw.find(‘world‘) 6 >>> hw[6:] ‘world‘
split分割
>>> ip1="192.168.1.123" >>> ip2="192.189.2.33" >>> ip1.split(‘.‘) [‘192‘, ‘168‘, ‘1‘, ‘123‘]
分割
ip1.split(‘.‘)[-1] ‘123‘
连接
>>> ip1=ip1.split(‘.‘) >>> ip1 [‘192‘, ‘168‘, ‘1‘, ‘123‘] >>> ".".join(ip1) ‘192.168.1.123‘ >>> "-------".join(ip1)
原文：http://www.cnblogs.com/Yimi/p/7744799.html