Python中运用正则表达式抓取网页图片

#!/usr/bin/python

import re

import urllib

#获取网页信息

def getHtml(url):

page = urllib.urlopen(url)

html = page.read()

return html

def getImg(html):

#匹配网页中的图片

reg = r'src="(.*?\.jpg)" alt'

imgre = re.compile(reg)

imglist = re.findall(imgre,html)

x = 0

for imgurl in imglist:

urllib.urlretrieve(imgurl,'%s.jpg' % x)

x+=1

html = getHtml("http://photo.bitauto.com/?WT.mc_id=360tpdq")

print getImg(html)