python 2.x

# -*- coding: utf-8 -*- import re import urllib url = 'http://tieba.baidu.com/p/4872795764' page = urllib.urlopen(url) html = page.read() r = 'src="(.*?\.jpg)" size'         # 注意此处？的作用，取消贪婪匹配 结合findall方法，只匹配分组中的内容 imgre = re.compile(r) imglist = re.findall(imgre, html) count = 0 for imgurl in imglist:     urllib.urlretrieve(imgurl, filename='mac_book Pro %s.jpg' % count)     count += 1 函数： def gethtml(url):     html = urllib.urlopen(url).read()     return html def getimg(html):     r = 'src="(.*?\.jpg)" size'     imgre = re.compile(r)     imglist = re.findall(imgre, html)     print imglist     count = 0     for imgurl in imglist:         urllib.urlretrieve(imgurl, filename='mac_book_Pro_%s.jpg' % count)         count += 1 html = gethtml('http://tieba.baidu.com/p/4872795764') getimg(html)