python爬取某个网页的图片-如百度贴吧

#coding:utf-8
import urllib
import urllib2
import re

if __name__ =="__main__":
rex=r'src="(http://imgsrc.baidu.com/forum/w%3D580.*?\.jpg)"';
Response=urllib2.urlopen("http://tieba.baidu.com/p/3842835603?fr=frs");
Html=Response.read();
lists = re.findall(rex, Html);
x=0;
for picurl in lists:
urllib.urlretrieve(picurl,'C:\Users\Administrator\Desktop\pic\%s.jpg' % x);
x=x+1;
print picurl;

print 'DownLoadPicOver'
# 图片存储路径:C:\Users\Administrator\Desktop\pic
#测试爬取网址:http://tieba.baidu.com/p/3842835603?fr=frs