对Python正则匹配IP、Url、Mail的方法详解


						如下所示：





"""

Created on Thu Nov 10 14:07:36 2016





@author: qianzhewoniuqusanbu

"""

import re

def RegularMatchIP(ip):

    '''进行正则匹配ip，加re.IGNORECASE是让结果返回bool型'''

    pattern=re.match(r'\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$',ip,re.IGNORECASE)

    if pattern:

        print ip

    else:

        print "The IP address format is incorrect!"

        



def RegularMatchUrl(url):

    pattern=re.match(r'(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?',url,re.IGNORECASE)

    if pattern:

        print url

    else:

        print "invalid url"

        

        

def RegularMatchEmail(email):

     pattern=re.match(r'\w+@([0-9a-zA-Z]+[-0-9a-zA-Z]*)(\.[0-9a-zA-Z]+[-0-9a-zA-Z]*)+',email,re.IGNORECASE)

     if pattern:

         print email

     else:

         print "invalid eamil"





RegularMatchIP("12.32.35.23")      

RegularMatchUrl("http://c.biancheng.net/cpp/html/1435.html")

RegularMatchEmail("109823434@qq.com")





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