实战python 爬虫爬取百度贴吧图片

#!/usr/bin/python

import urllib,urllib2
import re

def getHtml(url):
page = urllib2.urlopen(url)
return page.read()

def getImage(html):
re_img = re.compile(r'<img class="BDE_Image" src="(.*?)".*?>')
img_list = re_img.findall(html)
i = 1
for imgurl in img_list:
print imgurl
urllib.urlretrieve(imgurl, filename="%s.jpg" %i)
i += 1

if __name__ == '__main__':
url = 'http://tieba.baidu.com/p/4229162765'
page = getHtml(url)
img = getImage(page)