实现效果：

1. types / menu.ts

export interface MenuItem {index: string,label: string,icon?: string,disabled?: boolean,children?: MenuItem[],
}

2. components / CustomMenu / index.vue

<template><el-menu :default-active="defaultActive"><custom-menu-item :menu-list="props.menuList"/></el-menu></template><script setup lang="ts">import CustomMenuItem from "@/components/CustomMenu/components/CustomMenuItem.vue";
import type {MenuItem} from "@/types/menu";const props = defineProps<{menuList: MenuItem[],defaultActive?: string
}>()</script><style scoped lang="scss"></style>

3. components / CustomMenu / components / CustomMenuItem.vue

<template><template v-for="menu in props.menuList" :key="menu.index"><el-sub-menu v-if="menu.children" :index="menu.index" :disabled="menu.disabled"><template #title><el-icon v-if="menu.icon"><component :is="menu.icon"/></el-icon><span>{{ menu.label }}</span></template><custom-menu-item :menu-list="menu.children"/></el-sub-menu><el-menu-item v-else :index="menu.index" :disabled="menu.disabled"><el-icon v-if="menu.icon"><component :is="menu.icon"/></el-icon><span>{{ menu.label }}</span></el-menu-item></template></template><script setup lang="ts">import type {MenuItem} from "@/types/menu";const props = defineProps<{menuList: MenuItem[]
}>()</script><style scoped lang="scss"></style>

4. 使用 test.vue

<template><div class="custom-menu-container"><custom-menu :menu-list="menuList" :default-active="defaultActive"/></div></template><script setup lang="ts">import CustomMenu from '@/components/CustomMenu/index.vue'const defaultActive = '1-1'import type {MenuItem} from "@/types/menu";const menuList: MenuItem[] = [{index: '1',label: '菜单1',icon: 'House',children: [{index: '1-1',label: '菜单1-1',// icon: 'Connection'},{index: '1-2',label: '菜单1-2',// icon: 'ChatDotRound'}]},{index: '2',label: '菜单2',icon: 'Notification',children: [{index: '2-1',label: '菜单2-1',// icon: 'Setting'}]},{index: '3',label: '菜单3',icon: 'Odometer'}
]</script><style scoped lang="scss">.custom-menu-container {position: absolute;top: 10px;left: 10px;width: 200px;height: fit-content;
}</style>