docs: def __book_status_html(self, ctrlno):
          """
          获取图书借阅页面
          :param ctrlno:
          :return:
          """
          _params = {
              'ctrlno': ctrlno
          }
          _headers = {
              'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
              'Accept-Encoding': 'gzip, deflate, sdch',
              'Accept-Language': 'zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4',
              'Host': 'lib.wyu.edu.cn',
              'Referer': 'http://lib.wyu.edu.cn/opac/searchresult.aspx'
          }
          r = requests.get(url=WyuLibrary.url_book_info, headers=_headers, params=_params, timeout=self._timeout)
          # _.d(r.content.decode(_.get_charset(r.content)))
          return r.content.decode(_.get_charset(r.content))