python 5a 之 re.search 举例， 搜索关键字、在2-3个空格处分割、正则表达式

data = 'Aa1233abBBbb'

搜索前1-5位是子母的情况

re.search(r"[A-Z]{1,5}", i).group(0)

group() 和 group(0) 一致，显示输出结果

result = re.search('b', data)

result.group(0)

print(result.start()) # 匹配字符串的开始位置

print(result.end()) # 匹配字符串的结束位置

print(result.span())

在两个或更多个空格符处进行分隔

import re f = open('whodata.txt', 'r') for eachLine in f.readlines(): print re.split('ss+', eachLine) f.close()

['wesc', 'console', 'Jun 20 20:3312'] ['wesc', 'pts/9', 'Jun 22 01:3811(192.168.0.6)12'] ['wesc', 'pts/1', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/2', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/4', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/3', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/5', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/6', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/7', 'Jun 20 20:3311(:0.0)12'] ['wesc', 'pts/8', 'Jun 20 20:3311(:0.0)12']