一般字符和转义字符匹配

图1

#!/urs/bin/env python

#!-*-coding:utf-8 -*-

import re

#一般匹配,返回abc

print re.search("abc","abc.163.com").group()

#.匹配非“\n”,返回a%%f

print re.search("a..f","a%%f.163.com.a88f").group()

#\d匹配[0-9],\D非[0-9],返回a fg7kf

print re.search("a\Dfg\dkf","a fg7kf").group()

#\s匹配空字符,\S非空,返回a fg7kf

print re.search("a\Sfg\skf","a?fg kf").group()

#\w匹配字母或数字,\W非字母非数字,返回aGfg kf,a9fg@kf

print re.search("a\wfg\Wkf","aGfg kf").group()

print re.search("a\wfg\Wkf","a9fg@kf").group()

图2