1 import urllib.request
 2 import re
 3 import time
 4 import random
 5 
 6 
 7 def getResponse(url):
 8     req = urllib.request.Request(url)
 9     req.add_header("User-Agent","Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36")
10     
11     resp = urllib.request.urlopen(req)
12     return resp.read()
13 
14 def getHtml(url,charSet = "utf-8"):
15     return getResponse(url).decode(charSet)
16     
17     
18 def createOpenner(ipList):
19     m_proxy = urllib.request.ProxyHandler({"http":random.choice(ipList)})
20     openner = urllib.request.build_opener(m_proxy)
21     urllib.request.install_opener(openner)
22     
23 #
24 def getProxyList(url,iPage = 10):
25     ipList = []
26     for i in range(1,iPage+1):
27         html_str = getHtml(url+str(i))
28         ip = re.findall("IP\">((?:\d{1,3}\.){3}(?:\d{1,3}))(?:[\s\S]{0,50})\"PORT\">(\d{2,4})", html_str)
29         for addr in ip:
30             ipList.append(addr[0]+":"+addr[1]) 
31         time.sleep(2)
32         
33     return ipList
34    
35  
36 ipList = getProxyList("http://www.kuaidaili.com/free/outha/",1)#爬取1页
37 
38 
39 print(ipList)




 


快代理："IP\">((?:\d{1,3}\.){3}(?:\d{1,3}))(?:[\s\S]*?)\"PORT\">(\d{2,4})"     #下划线处原来是[\s\S]*，不带问号，后果是默认的贪婪模式。


只能取到一个地址，加上问号开启非贪婪模式。


 


西刺："((?:\d{1,3}\.){3}(?:\d{1,3}))(?:[\s\S]*?)(\d{2,4})"


返回ipList列表：['46.101.3.126:8118', '177.207.234.14:80', '113.255.49.49:80', '52.59.18.222:80', '36.81.0.138:8080', '54.165.24.194:80', '115.252.35.104:8080', '136.169.58.21:8080', '51.254.106.65:80', '178.238.213.246:8080', '49.205.212.243:8080', '137.135.166.225:8131', '168.63.24.174:8138', '179.243.46.131:8080', '186.90.160.245:8080']