循环传入的数据去生成下级菜单

<template> <div class="headBar"> <div class="title"> 微商城管理后台 </div> <el-menu class="el-menu-headBar" mode="horizontal" @select="handleSelect" background-color="#000000" text-color="#fff" active-text-color="#ffd04b" :unique-opened="true" :default-active="onRoutes" router> <template v-for="item in items" > <template v-if="item.subs" > <el-submenu :index="item.index"> <template slot="title" > {{item.title}} </template> <el-menu-item v-for="(subItem,i) in item.subs" :key="i" :index="subItem.index"> {{ subItem.title }} </el-menu-item> </el-submenu> </template> <template v-else> <el-menu-item :index="item.index"> <label>{{ item.title }}</label> </el-menu-item> </template> </template> </el-menu> </div></template> <script> export default { data() { return { activeIndex: "1", items: [ { icon: 'el-icon-menu', index: '1', title: '数据统计', subs: [ { index: '/monitor', title: '客流展示' }, { index: '/monitor/device', title: '设备采集' }, { index: '/monitor/tv', title: '监控视频' } ] },{ icon: 'el-icon-goods', index: '/product', title: '商品管理', },{ icon: 'el-icon-goods', index: '/category', title: '类目管理', },{ icon: 'fa fa-cart-arrow-down', index: '/order', title: '订单一览' },{ icon: 'fa fa-user-o', index: '/merchant', title: '商家信息' },{ icon: 'el-icon-printer', index: '9', title: '微商城', subs:[ { icon: 'el-icon-printer', index: '/banner', title: 'banner设置' },{ icon: 'el-icon-printer', index: '/decoration', title: '首页装修' },{ icon: 'el-icon-printer', index: '/message', title: '消息设置' } ] },{ icon: 'el-icon-printer', index: '10', title: '线下店', subs:[ { icon: 'el-icon-printer', index: '/device', title: '设备管理' },{ icon: 'el-icon-printer', index: '/advertise', title: '广告管理' },{ icon: 'el-icon-printer', index: '/version', title: '版本管理' } ] },{ icon: 'el-icon-printer', index: '/largeUI', title: '大屏' },{ icon: 'el-icon-printer', index: '/coupon', title: '优惠券' } ], } }, methods: { handleSelect(key, keyPath) { console.log(key, keyPath); } }, computed:{ onRoutes(){ return this.$route.path.replace('/',''); } } }</script> <style scoped> .el-menu-headBar { width: 80%; min-width: 950px; font-size: 12px; border-bottom: 1px #000000; } .headBar { width: 100%; height: 50px; display: flex; background-color: #000000; } .title { background-color: #ffdb15; color: #000; height: 100%; min-width: 200px; width: 200px; display: flex; justify-content: center; align-items: center; letter-spacing: 5px; font-size: 17px; }</style>

以上这篇vue侧边栏动态生成下级菜单的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。