python正则表达式相关总结

换行符

r’xxx’

print r'aa\n'
print 'aa\n'

pattern

import re
str_a='''
httpa
httpb
httpc
'''
pattern_re=re.compile('http.*')
res_list=pattern_re.findall(str_a)
print res_list

search

import re
str_a='''
httpa
httpbzhangshenmeguishidahaoren
httpc
'''
re_res=re.search('zhang.*hao',str_a,re.M)
print re_res.group()

match

import re
str_a='shenmegui'
re_res=re.match('.*me.*',str_a,re.M)
print re_res.group()