对el-menu组件进行递归封装（根据路由配置动态生成）

父组件调用子组件Menu

<el-menu :default-active="$route.path" 
  active-text-color="#fff" 
  background-color="#001529" 
  text-color="#959ea6"
  :router="true" 
  :collapse="layoutStore.fold">
  <Menus :routes="routes"></Menus>
</el-menu>

下面是routes的值（这个是v-router的配置）

const routes = [
  {
    path: '/login',
    component: () => import('@/views/login/index.vue'),
    name: 'login',
    meta: {
      title: '登录',
      hidden: true,
    },
  },
  {
    path: '/',
    component: () => import('@/views/layout/index.vue'),
    name: 'layout',
    meta: {
      title: '',
      hidden: false,
      icon: '',
    },
    redirect: '/home',
    children: [
      {
        path: '/home',
        component: () => import('@/views/home/index.vue'),
        name: 'home',
        meta: {
          title: '首页',
          hidden: false,
          icon: 'HomeFilled',
        },
      },
    ],
  },
  {
    path: '/screen',
    component: () => import('@/views/screen/index.vue'),
    name: 'Screen',
    meta: {
      title: '数据大屏',
      hidden: false,
      icon: 'DataBoard',
    },
  },
  {
    path: '/acl',
    component: () => import('@/views/layout/index.vue'),
    name: 'Acl',
    meta: {
      title: '权限管理',
      hidden: false,
      icon: 'Lock',
    },
    redirect: '/acl/user',
    children: [
      {
        path: '/acl/user',
        component: () => import('@/views/acl/user/index.vue'),
        name: 'User',
        meta: {
          title: '用户管理',
          hidden: false,
          icon: 'User',
        },
      },
      {
        path: '/acl/role',
        component: () => import('@/views/acl/role/index.vue'),
        name: 'Role',
        meta: {
          title: '角色管理',
          hidden: false,
          icon: 'Avatar',
        },
      },
      {
        path: '/acl/permission',
        component: () => import('@/views/acl/permission/index.vue'),
        name: 'Permission',
        meta: {
          title: '菜单管理',
          hidden: false,
          icon: 'List',
        },
      },
    ],
  },
  {
    path: '/product',
    component: () => import('@/views/layout/index.vue'),
    name: 'Product',
    meta: {
      title: '商品管理',
      hidden: false,
      icon: 'Goods',
    },
    redirect: '/product/trademark',
    children: [
      {
        path: '/product/trademark',
        component: () => import('@/views/product/trademark/index.vue'),
        name: 'Trademark',
        meta: {
          title: '品牌管理',
          icon: 'ShoppingCart',
          hidden: false,
        },
      },
      {
        path: '/product/attr',
        component: () => import('@/views/product/attr/index.vue'),
        name: 'Attr',
        meta: {
          title: '属性管理',
          icon: 'Management',
          hidden: false,
        },
      },
      {
        path: '/product/spu',
        component: () => import('@/views/product/spu/index.vue'),
        name: 'Spu',
        meta: {
          title: 'Spu',
          icon: 'SetUp',
          hidden: false,
        },
      },
      {
        path: '/product/sku',
        component: () => import('@/views/product/sku/index.vue'),
        name: 'Sku',
        meta: {
          title: 'Sku',
          icon: 'ScaleToOriginal',
          hidden: false,
        },
      },
    ],
  }
]

子组件

<template>
  <template v-for="item in routes" :key="item.name">
    <!-- 没有子路由 -->
    <template v-if="!item.children || item.children.length === 0">
      <el-menu-item v-if="!item.meta.hidden" :index="item.path">
        <el-icon>
          <component :is="item.meta.icon" />
        </el-icon>
        <template #title>
          <span>{{ item.meta.title }}</span>
        </template>
      </el-menu-item>
    </template>
    <!-- 只有一个子路由 并且只显示子路由的信息 -->
    <template v-if="item.children && item.children.length === 1">
      <el-menu-item v-if="!item.children[0].meta.hidden" :index="item.children[0].path">
        <el-icon>
          <component :is="item.children[0].meta.icon" />
        </el-icon>
        <template #title>
          <span>{{ item.children[0].meta.title }}</span>
        </template>
      </el-menu-item>
    </template>
    <!-- 有多个子路由 -->
    <template v-if="item.children && item.children.length > 1">
      <el-sub-menu :index="item.path">
        <template #title>
          <el-icon>
            <component :is="item.meta.icon" />
          </el-icon>
          <span>{{ item.meta.title }}</span>
        </template>
        <Menus :routes="item.children" />
      </el-sub-menu>
    </template>
  </template>
</template>

<script setup lang="ts">
defineProps(['routes'])
</script>
<script lang="ts">
export default {
  name: 'Menus',
}
</script>
<style lang="scss" scoped></style>