python+requests 验证码登录

1. 1、先创建一个session    
   
   req = requests.session()
   2、通过session来把验证码下载到本地，
   
   code = req.get("https://passport.company-pvt.tongtool.com/captcha.jpg", headers=headers)
   with open('code.jpg', 'wb') as file:
       file.write(code.content)
       file.close
   3、使用fiddle对登录请求分析，传入的参数如下，其中cap为手工输入的验证码
   
   data = {"u": "",
           "haveRisk": "https://twerp-staging.tongtool.com/#/goods/mygoods",
           "username": "******",
           "password": "****",
           "captcha": cap}
   4、执行登录
   
   login = req.post(url, headers=headers, params=data)

   https://blog.csdn.net/zhouxuan623/article/details/107230683