Vue3后台管理系统Element-plus_侧边栏制作_无限递归

在home.view中添加代码

<template><div><div class="common-layout"><el-container><el-header class="common-header flex-float"><div class="flex"><img class="logo" src="../assets/logo.png" alt="" /><h1 class="title">商铺后台管理系统</h1></div><el-button type="danger">退出</el-button></el-header><el-container><!-- 侧边栏 --><el-aside class="common-aside" width="200px"><!-- 菜单 --><el-menu background-color="none" text-color="#fff" :router="true"><testItem v-for="menu in menuList" :menu="menu" :key="menu.id" :index="menu.id+''"></testItem></el-menu></el-aside><el-main><router-view></router-view></el-main></el-container></el-container></div></div>
</template>

<script setup>
import { reactive } from 'vue'
let menuList = reactive([{authname: "随便管理",id: 1,children: []},{authname: "用户管理",id: 2,children: [{authname: "二级用户1",id: 12,children: []},{authname: "二级用户2",id: 13,children: [{id: 14,authname: "三级用户1"}]}]},{authname: "订单管理",id: 3,children: [{authname: "二级订单1",id: 15,children: []},{authname: "二级订单2",id: 16,children: [{id: 17,authname: "三级订单1",children:[{id:18,authname:"四级",children:[{id:20,authname:"五级",children:[]}]}]}]}]}
])
</script>

<style >
.el-container {height: 100vh;overflow: hidden;
}.common-header {background: rgb(63 67 72);
}.common-aside {background: rgb(48, 55, 65);
}.logo {width: 60px;
}.title {color: #fff;
}
</style>

 2 创建一个全局组件

<template lang=""><el-menu-item :index="menu.id+''"  v-if="!menu.children || menu.children.length == 0" ><image src="../assets/logo.png" style="width:30px;height:30px;"/><span>{{ menu.authname }}</span></el-menu-item><el-sub-menu v-else ><template #title><image src="../assets/logo.png" style="width:30px;height:30px;"/><span>{{ menu.authname }}</span></template><!-- 二级菜单 --><el-menu-item-group v-if=" menu.children&& menu.children.length>0"><testItem  v-for="item in menu.children" :key="item.id" :index="item.id+''" :menu="item"></testItem></el-menu-item-group><testItem v-else  v-for="item in menu.children" :key="item.id" :index="item.id+''" :menu="item"></testItem></el-sub-menu></template><script>export default {name: 'testItem',props: {menu: Object}
}
</script><style lang=""></style>

 效果如图