<div>{{logTime|formatDate}}</div>

data:{
    logTime:1609899674000000000   //這個是納秒的時間戳
}

filters: {
    formatDate: function (value) {
        let date = new Date(value / 1000000);//這個是納秒的，想要毫秒的可以不用除以1000000
        let y = date.getFullYear();
        let MM = date.getMonth() + 1;
        MM = MM < 10 ? ('0' + MM) : MM;
        let d = date.getDate();
        d = d < 10 ? ('0' + d) : d;
        let h = date.getHours();
        h = h < 10 ? ('0' + h) : h;
        let m = date.getMinutes();
        m = m < 10 ? ('0' + m) : m;
        let s = date.getSeconds();
        s = s < 10 ? ('0' + s) : s;
        return y + '-' + MM + '-' + d + ' ' + h + ':' + m + ':' + s;
      }
  },

var startTime = new Date().getTime() * 1000000 - 60*60*1000*1000000; //這個是一天前的時間戳
var endTime = new Date().getTime() * 1000000; //轉(zhuǎn)換成納秒的時間戳
//注意：startTime --- endTime 可以得到當前的時間到一天前時間的范圍

operationTimeChange(val){
      var start = new Date(val[0]).getTime() * 1000000;
      var end = new Date(val[1]).getTime() * 1000000;
    }
//這個val是日期時間選擇器選擇時間后得到的

<template>
  <div>
    <p>原始時間戳：{{ timestamp }}</p>
    <p>轉(zhuǎn)換后的日期：{{ formattedDate }}</p>
  </div>
</template>
<script>
import { ref, computed } from 'vue';
export default {
  setup() {
    const timestamp = ref(1632800400000); // 13位時間戳，示例為2021年09月28日 10:00的時間戳
    const formattedDate = computed(() => {
      const date = new Date(timestamp.value);
      const year = date.getFullYear();
      const month = String(date.getMonth() + 1).padStart(2, '0');
      const day = String(date.getDate()).padStart(2, '0');
      const hours = String(date.getHours()).padStart(2, '0');
      const minutes = String(date.getMinutes()).padStart(2, '0');
      return `${year}年${month}月${day}日 ${hours}:${minutes}`;
    });
    return {
      timestamp,
      formattedDate,
    };
  },
};
</script>

<template>
  <div>
    <ul>
      <li v-for="(item, index) in items" :key="index">
        <p>原始時間戳：{{ item.timestamp }}</p>
        <p>轉(zhuǎn)換后的日期：{{ formatDate(item.timestamp) }}</p>
      </li>
    </ul>
  </div>
</template>
<script>
import { ref } from 'vue';
export default {
  setup() {
    const items = ref([
      { id: 1, timestamp: 1632800400000 },
      { id: 2, timestamp: 1632811200000 },
      { id: 3, timestamp: 1632822000000 },
    ]); // 示例數(shù)據(jù)，包含3個對象，每個對象都有一個13位時間戳字段
    const formatDate = (timestamp) => {
      const date = new Date(timestamp);
      const year = date.getFullYear();
      const month = String(date.getMonth() + 1).padStart(2, '0');
      const day = String(date.getDate()).padStart(2, '0');
      const hours = String(date.getHours()).padStart(2, '0');
      const minutes = String(date.getMinutes()).padStart(2, '0');
      return `${year}年${month}月${day}日 ${hours}:${minutes}`;
    };
    return {
      items,
      formatDate,
    };
  },
};
</script>