code: def get_verify_code(self, file_path):
          
          url = 'https://mp.weixin.qq.com/cgi-bin/verifycode'
          payload = {
              'username': self.__username,
              'r': int(random.random() * 10000000000000),
          }
          headers = {
              'referer': 'https://mp.weixin.qq.com/',
          }
          r = requests.get(url, data=payload, headers=headers, stream=True)
  
          self.__cookies = ''
          for cookie in r.cookies:
              self.__cookies += cookie.name + '=' + cookie.value + ';'
  
          with open(file_path, 'wb') as fd:
              for chunk in r.iter_content(1024):
                  fd.write(chunk)
docs: 获取登录验证码并存储
          :param file_path: 将验证码图片保存的文件路径