例子：從某網站扒註冊碼的例子

#!/usr/bin/python

# coding: UTF-8

 

import urllib, urllib2, cookielib, re

 

urlPrefix='http://www.somehost.com'

cj = cookielib.CookieJar()

opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

opener.addheaders = [('User-Agent', 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1;)')]

 

f = open('1.csv', 'w')

count=0;

for i in range(280020,280840):

    url=urlPrefix+"/articles/"+str(i)+".htm";

    try:

        indexPageContent=opener.open(url).read()

        for match in re.finditer("/w{4}/s/w{4}/s/w{4}/s/w{4}", indexPageContent):

            f.write(url+","+match.group())

            count++

        print  url+"/tOK/t"+str(count)

    except urllib2.HTTPError, e:

        print  url+"/t404/t"+str(count)

f.close()