vue el-date-picker中datetime类型对今天之后的日期包含时分禁用

目前对选择秒那一列未禁用

<template>
  
      <div>
        <el-date-picker
            v-model="deactivateTime"
            type="datetime"
            format="yyyy-MM-dd HH:mm:ss"
            value-format="yyyy-MM-dd HH:mm:ss"
            placeholder="请选择时间"
            :picker-options="pickerOptions"
        >
        </el-date-picker>
      </div>
      
</template>

<script>
export default {
  
  watch: {
   
    deactivateTime:{
      handler(newValue,oldValue){
        if(newValue == oldValue) {
          return;
        }
        this.selectableRange = this.timeRange(newValue);
      },
      immediate: true
    }
  },
  data () {
    return {
     deactivateTime: '',
      selectableRange: []
    };
  },
  computed: {
    pickerOptions() {
      return {
        disabledDate(time) {
          return time.getTime() > Date.now()
        },
        selectableRange: this.selectableRange,
      }
    }
    },
  mounted () { },
  methods: {
    initDateTime (date) {
      var dt = new Date(date)
      var h = dt.getHours() //获取时
      var m = dt.getMinutes() //获取分
      var s = dt.getSeconds() //获取秒
      if (h < 10) {
        h = '0' + h
      }
      if (m < 10) {
        m = '0' + m
      }
      if (s < 10) {
        s = '0' + s
      }
      return  h + ':' + m + ':' + s
    },
    timeRange(val) {

      if(val) {
        return new Date(val).getTime() < new Date().getTime() ? ['00:00:00 - 23:59:59'] : [`00:00:00 - ${this.initDateTime(new Date())}`]
      } else {
        return ['00:00:00 - 23:59:59']
      }
    },
    


  },
};
</script>

需要注意： el-date-picker的selectable-range属性不支持秒级的选择范围。该属性只能用于限制年、月、日、小时和分钟的选择范围。所以目前对选择秒那一列未禁用