docs: def _get_electricity_info_html( apart_id, meter_room):
          """get html
  
          :param apart_id: 栋数
          :param meter_room: 宿舍号
          """
          if apart.get(apart_id) is None:
              raise KeyError('not support the apart_id= ' + apart_id)
          post_data = {
              'action': 'search',
              'apartID': apart.get(apart_id),
              'meter_room': apart_id + meter_room
          }
          r = requests.post('http://202.192.252.140/index.asp', data=post_data)
          return r.content.decode(_.get_charset(r.content))