Element时间转换时间戳

        if(this.modalList.date != null){
          var d = this.modalList.date[0];//开始时间
          var e = this.modalList.date[1];//结束时间
          this.modalList.sdate = new Date(d).getTime()/1000;
          this.modalList.enddate = new Date(e).getTime()/1000;
        }else{
          this.modalList.sdate = "";
          this.modalList.enddate = "";
        }