实例练习:正则表达式爬取百度贴吧照片
代码出自小甲鱼,复盘,省略了图片的下载部分
正则真的太好用了,不过关键在你想不想的到最高效的正则表达式
1 #!/usr/bin/env python 2 # -*- coding: utf-8 -*- 3 import urllib.request 4 import re 5 6 url = "https://tieba.baidu.com/p/6512141636" 7 8 def web(url): 9 response = urllib.request.urlopen(url) 10 html = response.read().decode('UTF-8','ignore') 11 test = r'<img class="BDE_Image" src="([^"]+\.jpg)"' 12 out = re.findall(test,html) 13 print(out) 14 web(url)