效果在这里插入图片描述

代码实现

<template>
{{ count }}秒后返回网站首页 <br>
</template>

<script lang="ts">
import router from "/@/router";
import {onMounted, reactive, ref} from "vue";

export default {
  setup(): any {
    onMounted(() => {
      countdown()  //页面一加载成功就执行
    })

    let timer = null
    let count: number = ref(10)

    //倒计时
    function countdown() {
      timer = setInterval(() => {
        count.value = count.value-1
        if (count.value <= 0) {
          clearInterval(timer);
          timer = null;
          //跳转的页面写在此处
          router.push({path: "/"}); // 强制切换当前路由 path
        }
      }, 1000)
    }

    return {
      count
    }
  }
}
</script>
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