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>