#! -*- encoding:utf-8 -*-
  import requests
  import random
  import requests.adapters

  # 要訪問的目標(biāo)頁面
  targetUrlList = [
    "https://httpbin.org/ip",
    "https://httpbin.org/headers",
    "https://httpbin.org/user-agent",
  ]

  # 代理服務(wù)器
  proxyHost = "t.16yun.cn"
  proxyPort = "31111"

  # 代理隧道驗證信息
  proxyUser = "username"
  proxyPass = "password"

  proxyMeta = "http://%(user)s:%(pass)s@%(host)s:%(port)s" % {
    "host": proxyHost,
    "port": proxyPort,
    "user": proxyUser,
    "pass": proxyPass,
  }

  # 設(shè)置 http和https訪問都是用HTTP代理
  proxies = {
    "http": proxyMeta,
    "https": proxyMeta,
  }

  # 訪問三次網(wǎng)站，使用相同的Session(keep-alive)，均能夠保持相同的外網(wǎng)IP
  s = requests.session()

  # 設(shè)置cookie
  cookie_dict = {"JSESSION":"123456789"}
  cookies = requests.utils.cookiejar_from_dict(cookie_dict, cookiejar=None, overwrite=True)
  s.cookies = cookies

  for i in range(3):
    for url in targetUrlList:
      r = s.get(url, proxies=proxies)
      print r.text
若存在驗證碼，此時采用resp**e = requests_session.post(url=url_login, data=data)是不行的，做法應(yīng)該如下：

resp**e_captcha = requests_session.get(url=url_login, cookies=cookies)
resp**e1 = requests.get(url_login) # 未登陸
resp**e2 = requests_session.get(url_login) # 已登陸，因為之前拿到了Resp**e Cookie！
resp**e3 = requests_session.get(url_results) # 已登陸，因為之前拿到了Resp**e Cookie！