code: def get_img(self, url, headers=None, cookies=None, timeout=60, verify=False, proxies=None, allow_redirects=True,
                  params=None):
          
          if self.session:
              r = self.session.get(url, headers=odict(headers), cookies=cookies, timeout=timeout, verify=verify,
                                   proxies=proxies, allow_redirects=allow_redirects, params=params)
          else:
              r = requests.get(url, headers=odict(headers), cookies=cookies, timeout=timeout, verify=verify,
                               proxies=proxies, allow_redirects=allow_redirects, params=params)
          r.raise_for_status()
          return r.content
docs: get方式获取 img 二进制信息
          :param url: 访问Url
          :param headers: 请求头
          :param cookies: 请求cookies
          :param timeout: 超时时间
          :param verify: ssl验证
          :param proxies: 代理
          :param allow_redirects: 是否允许重定向
          :param encoding: 返回的html编码s
          :param params: 查询请求参数
          :return: 二进制图片数据