vue播放视频，后端返回视频时长为秒，前端展示

代码如下：

secondsFormat(s) {
      var day = Math.floor(s / (24 * 3600)); // Math.floor()向下取整
      var hour = Math.floor((s - day * 24 * 3600) / 3600);
      var minute = Math.floor((s - day * 24 * 3600 - hour * 3600) / 60);
      var second = s - day * 24 * 3600 - hour * 3600 - minute * 60;
      if (hour) {
        return hour + ":" + minute + ":" + second;
      } else {
        if (second < 10) {
          if (minute < 10) {
            return "0" + minute + ":" + second + "0";
          } else {
            return minute + ":" + second + "0";
          }
        } else {
          return minute + ":" + second;
        }
      }
    },