附上代码，httpbin.org/ip可查看当前访问IP

# coding=utf-8
import urllib2
import random
import time
import requests


def dl():
    a1={
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64)'}
    o_g=['114.239.3.149:808','61.232.254.39:3128','218.18.232.29:8080']
    a=0
    for a in range(0,3):
        proxies_l = {'http': o_g[a],

             }
        print(proxies_l['http'])

        try:
            req=requests.get('http://httpbin.org/ip',headers=a1,proxies=proxies_l)
            print('finish')
            print (req.text)
        except:
            print('no proxies')
        sleep_time=random.randint(1,3)
        time.sleep(sleep_time)
        print('Wait%ds'%sleep_time)

dl()