// 倒计时

    daojishi(params) {

      let _this = this;

      let datetemp = this.servertimes;

      let lasttime = Date.parse(datetemp.replace(/-/g,"/"));

      // new Date(datetemp).getTime()  为NaN

      let nowtime = parseInt(new Date().getTime());

      let intDiff =parseInt(lasttime - nowtime); //当前时间 - 预设时间

      if(intDiff>0){

        intDiff = parseInt(intDiff/1000)

        window.setInterval(function () {

          var day = 0,hour = 0,minute = 0,second = 0; //默认值

          if (intDiff > 0) {

            day = Math.floor(intDiff / (60 * 60 * 24));

            hour = Math.floor(intDiff / (60 * 60)) - (day * 24);

            minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);

            second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);

          }

          if (minute <= 9) minute = '0' + minute;

          if (second <= 9) second = '0' + second;

          _this.servertime = hour +':'+ minute +':'+ second +" 内上门服务"

          intDiff--;

        }, 1000);

      }else{

        _this.servertime = "逾期请联系客服";

      }

    },