docs: function formatTime(time) {
        var hour;
        var minute;
        hour = Math.floor(time / 60);
        if (time % 60 === 0) {
          minute = 0;
        } else {
          minute = time % 60;
        }
        if (hour === 0) {
          return minute + '分钟';
        } else if (hour !== 0 && minute === 0) {
          return hour + '小时';
        } else {
          return hour + '小时' + minute + '分钟';
        }
      }