Vue 中获取当前时间并实时刷新的实现代码

1. 实现代码

<template>
 <div>
  {{nowdate}}{{nowweek}}{{nowtime}}
 </div>
</template>

<script>
export default {
 data(){
  return {
   nowdate: "",  // 当前日期
   nowtime: "",  // 当前时间
   nowweek: ""   // 当前星期
  }
 },
 methods:{
  dealwithtime(data) { // 获取当前时间
   let formatdatetime;
   let y = data.getfullyear();
   let m = data.getmonth() + 1;
   let d = data.getdate();
   let h = data.gethours();
   let min = data.getminutes();
   let s = data.getseconds();
   let w = data.getday();
   h = h < 10 ? "0" + h : h;
   min = min < 10 ? "0" + min : min;
   s = s < 10 ? "0" + s : s;
   switch (w) {
    case 0:
     w = "日";
     break;
    case 1:
     w = "一";
     break;
    case 2:
     w = "二";
     break;
    case 3:
     w = "三";
     break;
    case 4:
     w = "四";
     break;
    case 5:
     w = "五";
     break;
    case 6:
     w = "六";
     break;
    default:
     break;
   }
   this.nowdate = y + "年" + m + "月" + d + "日 ";
   this.nowweek = "周" + w ; 
   this.nowtime = h + ":" + min + ":" + s;
   // formatdatetime = y + "年" + m + "月" + d + "日 " + " 周" +w + h + ":" + min + ":" + s;
  },
 },
 mounted() { 
  // 页面加载完后显示当前时间
  this.dealwithtime(new date())
  // 定时刷新时间
  this.timer = setinterval(()=> {
    this.dealwithtime(new date()) // 修改数据date
  }, 500)
 }, 
 destroyed() {
  if (this.timer) { // 注意在vue实例销毁前，清除我们的定时器
   clearinterval(this.timer);
  }
 }
}
</script>

<style lang="scss" scope>

</style>

2. 实现效果

总结

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