python获取url的返回信息方法

#!/usr/bin/env python # -*- coding: utf-8 -*- import osimport sysimport urllibimport urllib2import string#########start 获取url的返回信息############def jwkj_url_postget(url,vlaues): data = urllib.urlencode(values) req = urllib2.Request(url, data) response = urllib2.urlopen(req) str = response.read() return str#########end 获取url的返回信息############if __name__ == "__main__":  print jwkj_url_postget('http://localhost/getTextAd.php',{'pmac':'001122334466'})