import re import urllib.request class Picture(object):     def run(self):         # 定义变量url 获取要下载图片的地址         url = "http://www.txt100.com/bbrvtwyhknv/85774146.html"         response = urllib.request.urlopen(url).read().decode('utf-8')         imglist = re.findall('src="(.+?\.jpg)"', response)         x = 0         for imgurl in imglist:             imgurl = 'http://www.txt100.com' + imgurl             urllib.request.urlretrieve(imgurl, "./{}.jpg".format(x))             x = x + 1             print("第", x, "张下载完毕") if __name__ == '__main__':     p = Picture()     p.run()