changeStartTime(val){
        debugger
        this.startT = val
        // this.startTime = parseInt(val.split('-').join(''))
        this.startTime = moment(val).unix() * 1000 //开始时间毫秒
        if(this.endTime){
          this.endTime = moment(this.endT).unix() * 1000 //结束时间毫秒
          if(this.startTime - this.endTime >= 0){
            this.$message.warning('培训开始时间不能大于培训结束时间！')
            this.form.trainTime = ''
            this.form.trainDuration = ''
          }else{
            const sc = (this.endTime - this.startTime) /1000 / 60 / 60 + 'h'
            this.form.trainDuration = sc
          }
        }
      },
      changeEndTime(val){
        this.endT = val
        // this.endTime = parseInt(val.split('-').join(''))
        this.endTime = moment(val).unix() * 1000 //开始时间毫秒
        if(this.startTime){
          this.startTime = moment(this.startT).unix() * 1000 //结束时间毫秒
          if(this.endTime - this.startTime <=0 ){
            this.$message.warning('培训结束时间不能小于培训开始时间！')
            this.form.completeTime = ''
            this.form.trainDuration = ''
          }else{
            const sc = (this.endTime - this.startTime) /1000 / 60 / 60 + 'h'
            this.form.trainDuration = sc
          }
        }
      },