关于vant的时间选择器使用方式

<van-popup
      :show="showPop"
      position="bottom"
      label="有效日期"
      custom-style="height: 50%;"
      @close="onCancel"
    >
      <view v-if="showTwoTime">
        <van-datetime-picker
          type="date"
          :value="currentDate"
          @confirm="confirm1"
          @cancel="onCancel"
          :min-date="minDate"
          :formatter="formatter"
        />
      </view>
      <view v-if="!showTwoTime">
        <van-datetime-picker
          type="date"
          :value="currentDate"
          @confirm="confirm2"
          @cancel="onCancel"
          :min-date="minDate"
          :formatter="formatter"
        /> </view
    ></van-popup>

 confirm1(value) {
      this.plan.start_time = this.formatTime(value.detail, 'Y/M/D')
      this.showTwoTime = false
    },
    confirm2(value) {
      this.showPop = false
      this.plan.end_time = this.formatTime(value.detail, 'Y/M/D')
      this.showTwoTime = true
    },
    formatTime(date) {
      date = new Date(date)
      console.log(date)
      var year = date.getFullYear()
      var month = date.getMonth() + 1
      var day = date.getDate()
      return [year, month, day].map(this.formatNumber).join('/')
    },
    formatNumber(n) {
      n = n.toString()
      return n[1] ? n : '0' + n
    },

  <van-popup
      :show="showPop"
      position="bottom"
      label="有效日期"
      custom-style="height: 50%;"
      @close="onCancel"
    >
      <view v-if="showTwoTime">
        <van-datetime-picker
          type="date"
          :value="currentDate"
          @confirm="confirm1"
          @cancel="onCancel"
          :min-date="minDate"
          :formatter="formatter"
        />
      </view>
      <view v-if="!showTwoTime">
        <van-datetime-picker
          type="date"
          :value="currentDate"
          @confirm="confirm2"
          @cancel="onCancel"
          :min-date="minDate"
          :formatter="formatter"
        /> </view
    ></van-popup>

    //data的定义
      showPop: false,
      currentDate: new Date().getTime(),
      minDate: new Date().getTime(),
      showTwoTime: true,
     

   //方法的定义
   changeFn() {
      this.changeDate = this.currentDate
    },
    confirm1(value) {
      this.plan.start_time = this.formatTime(value.detail, 'Y/M/D')  ///'Y/M/D'为了提示自己时间格式
      this.showTwoTime = false
    },
    confirm2(value) {
      this.showPop = false
      this.plan.end_time = this.formatTime(value.detail, 'Y/M/D')
      this.showTwoTime = true
    },
    formatTime(date) {
      date = new Date(date)  //从时间选择器中得到的时间格式为时间搓,因此需要转换为标准制式时间单位
      console.log(date)  
      var year = date.getFullYear()
      var month = date.getMonth() + 1
      var day = date.getDate() //这里只表现到日,时,分,秒自习行添加方法!
      return [year, month, day].map(this.formatNumber).join('/') //转换为产品经理想要的展示形式
    },
    formatNumber(n) {
      n = n.toString()
      return n[1] ? n : '0' + n //加0操作!
    },
      formatter(type, value) {  //展示的格式处理
        if (type === 'year') {
          return `${value}年`
        }
        if (type === 'month') {
          return `${value}月`
        }
        if (type === 'day') {
          return `${value}日`
        }
        return value
      },