vue2日期格式转化

this.Data = this.currentTime(data.fillingTime).time3;

不传data.fillingTime，当前时间

   currentTime(data) {
      let dataTime = "";
      if (data) {
        dataTime = new Date(data);
      } else {
        dataTime = new Date();
      }
//年
      let year = dataTime.getFullYear();
      //月份是从0月开始获取的，所以要+1;
      let month =
        dataTime.getMonth() + 1 < 10
          ? "0" + Number(dataTime.getMonth() + 1)
          : dataTime.getMonth() + 1;
//日
      let day =
        dataTime.getDate() < 10 ? "0" + dataTime.getDate() : dataTime.getDate();
//时
      let hour =
        dataTime.getHours() < 10
          ? "0" + dataTime.getHours()
          : dataTime.getHours();
  //分
      let minute =
        dataTime.getMinutes() < 10
          ? "0" + dataTime.getMinutes()
          : dataTime.getMinutes();
    //秒
      let second =
        dataTime.getSeconds() < 10
          ? "0" + dataTime.getSeconds()
          : dataTime.getSeconds();

// 日期
      let time =
        year +
        "-" +
        month +
        "-" +
        day +
        " " +
hour +
        ":" +
        minute +
        ":" +
        second;
      //日期格式2
      let time2 = year + "年" + month + "月" + day + "日" + hour + "时";
//日期格式3
      let time3 = year + "-" + month + "-" + day;
      return { time, time2, time3 };
    },