修改CommonAside的代码：

<template><div><el-menu default-active="1-4-1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose":collapse="isCollapse"><!--<el-menu-item v-for="item in noChildren"  :key="item.name"  :index="item.name"><i :class="`el-icon-${item.icon}`"></i><span slot="title">{{ item.label }}</span></el-menu-item>--><el-menu-item index="2"><!-- i标签是图标 --><i class="el-icon-menu"></i><!-- 导航的文字 --><span slot="title">导航2</span></el-menu-item><el-submenu index="1"><template slot="title"><i class="el-icon-location"></i><span slot="title">导航一</span></template><el-menu-item-group><el-menu-item index="1-1">选项1</el-menu-item><el-menu-item index="1-2">选项2</el-menu-item></el-menu-item-group></el-submenu></el-menu></div>
</template><style>.el-menu-vertical-demo:not(.el-menu--collapse) {width: 200px;min-height: 400px;}
</style><script>export default {data() {return {isCollapse: false,menuData: [{path: '/',name: 'home',label: '首页',icon: 's-home',url: 'Home/Home'},{path: '/mall',name: 'mall',label: '商品管理',icon: 'video-play', //图标url: 'MallManage/MallManage'},{path: '/user',name: 'user',label: '用户管理',icon: 'user',url: 'UserManage/UserManage'},{label: '其他',icon: 'location',children: [{path: '/page1',name: 'page1',label: '页面1',icon: 'setting',url: 'Other/PageOne'},{path: '/page2',name: 'page2',label: '页面2',icon: 'setting',url: 'Other/PageTwo'}]}]};},methods: {handleOpen(key, keyPath) {console.log(key, keyPath);},handleClose(key, keyPath) {console.log(key, keyPath);}},computed:{//无子菜单noChildren() {this.menuData.filter(item => !item.children)},//有子菜单hasChildren() {this.menuData.filter(item => item.children)}}}
</script>