最基础的python抓取网站图片例子

# -*- coding: utf-8 -*-import reimport urllibimport urllib2class Spider:    def downLoad(self, url):        html = self.getHtml(url)        self.getImages(html)    #根据url 得到 html    def getHtml(self, url):        page = urllib.urlopen(url)        return page.read()    def getImages(self, html):        rgx = re.compile(r'src="(.+?\.jpg)" pic_ext')        imgList = rgx.findall(html) #根据 html 匹配出 图片的url        x = 0        for cur in imgList:            print ("下载第 %d 张" % x)            urllib.urlretrieve(cur, "%s.jpg" %x)            x = x + 1if __name__ == "__main__":    url = "http://tieba.baidu.com/p/2460150866"    spider = Spider()    spider.downLoad(url)