code: def get_daily_songs(self):
          
          self._daily_playlist = douban.get_daily_songs()
  
          # 加入索引
          for index, i in enumerate(self._daily_playlist):
              i['title'] = str(index + 1) + '/' + str(len(self._daily_playlist)) + ' ' + i['title']
docs: 获取每日推荐歌曲