``` 1、reqeusts.utils.dict_from_cookiejar 把cookie对象转化为字典 2、请求 SSL证书验证 response = requests.get("https://www.12306.cn/mormhweb/ ", verify=False) 3、设置超时 response = requests.get(url,timeout=10) 4、配合状态码判断是否请求成功 assert response.status_code == 200 ```