python笔记：正则表达式

import re

#替换掉html中的标签
def RemoveHttpStr(val):
   return re.sub('<[^>]*>', '', val)

def ExtractData(regex, content):  
    r = None 
    p = re.compile(regex)  
    m = p.findall(content)  
    if m:  
        r = m
    return r

import re
errHTML ='''
username:yzh
userqq:123
username:lsl
userqq:456
'''
p = re.compile("username:(.)\suserqq:(?P<qq>\d)",re.IGNORECASE)

m =  p.finditer(errHTML)

if m:
   for i in m:
       print i.group("qq")