Yi.Admin/Yi.Vue3.x.Vant/src/App.vue

<script setup lang="ts">
// This starter template is using Vue 3 <script setup> SFCs
// Check out https://vuejs.org/api/sfc-script-setup.html#script-setup
import HelloWorld from './components/HelloWorld.vue'
</script>

<template>
  <router-view></router-view>

</template>

<style scoped>

</style>