vue中获取当前日期

新建一个Date对象：var now = new Date();//Wed Oct 26 2022 11:58:37 GMT+0800 (中国标准时间)

转格式：var now = new Date().getTime();//1666756717321

增减日期： var ysdtime = new Date().getTime() - 1000 * 60 * 60 * 24 * 1;//退到昨天

转yyyy-MM-dd HH:mm:ss：timestampToTime(timestamp) {

      var date = new Date(timestamp); //时间戳为10位需*1000，时间戳为13位的话不需乘1000

      var Y = date.getFullYear() + "-";

      var M = (date.getMonth() + 1 < 10? "0" + (date.getMonth() + 1): date.getMonth() + 1) + "-";

      var D =(date.getDate() < 10 ? "0" + date.getDate() : date.getDate()) + " ";

      var h =(date.getHours() < 10 ? "0" + date.getHours() : date.getHours()) + ":";

      var m =(date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes()) +":";

      var s =date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();

      return Y + M + D + h + m + s;

    },