方式一: 通过icanhazip.com返回的ip地址进行检测

import requests
\'\'\'代理IP地址（高匿）\'\'\'
proxy = {
  \'http\': \'http://117.85.105.170:808\',
  \'https\': \'https://117.85.105.170:808\'
}
\'\'\'head 信息\'\'\'
head = {\'User-Agent\': \'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36\', 
       \'Connection\': \'keep-alive\'}
\'\'\'http://icanhazip.com会返回当前的IP地址\'\'\'
p = requests.get(\'http://icanhazip.com\', headers=head, proxies=proxy)
print(p.text)

方式二: Telnet方法

import telnetlib

def test_ip(ip,port):
    try:
        telnetlib.Telnet(ip,port,timeout=2)
        print("代理ip有效！")
    except:
        print("代理ip无效！")

test_ip("221.6.139.158","9000")

from:
https://www.jb51.net/article/144418.htm
http://http.hunbovps.com/article-id-423.html

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