1. 更新router，实现导航栏功能
   
2. 框架页分为多个部分，头部，头部包含logo以及用户信息，左端是导航栏，右端是导航栏对应的内容
   头部如下，
   
   左端是导航栏如下，
   

框架页代码

<template>
  <div class="layout">
      <el-container >
  <el-header class="header">
    <div class="logo">Blog</div>
    <div class="user-info">
      <span>欢迎回来，</span>
      <el-dropdown trigger="click">
    <span class="nick-name">
     {{userInfo.nickName}}
      <span class="iconfont icon-close"></span>
    </span>
   
    <template #dropdown>
      <el-dropdown-menu>
        <el-dropdown-item>个人信息</el-dropdown-item>
        <el-dropdown-item>退出</el-dropdown-item>
      </el-dropdown-menu>
    </template>
  </el-dropdown>
  <div class="avatar">
    <img :src="userInfo.avatar">
  </div>
  
  </div>
  </el-header>
  <el-container class="container">
    <el-aside width="200px"
              class="left-aside">
              <div>
                  <el-button class="post-btn">发布</el-button>
              </div>
              <div class="menu-panel">
              <ul>
                  <li v-for="(menu,index) in menuList" 
                      v-bind:key="menu">
                      <span class="menu-title-p" @click="openClose(index)">
                           <span :class="['iconfont',menu.icon]"></span>
                           <span class="menu-title">{{menu.title}}</span>
                           <span :class="['iconfont','open-close',menu.open?'icon-open':'icon-close']"></span>
                      </span>
                      
                  <ul class="sub-menu" 
                      v-show="menu.open">
                      <li v-for="subMenu in menu.children"
                          v-bind:key="subMenu">
                         <router-link :to="subMenu.path"
                                      :class="['sub-menu-item',activePath==subMenu.path?'active':'']"
                                      >
                                     {{subMenu.title}}
                         </router-link>
                      </li>
                </ul>
                  </li>
              </ul>
              </div>
              
              </el-aside>
    <el-main class="right-main">
      <router-view/>
    </el-main>
  </el-container>
</el-container>
  </div>
</template>

<script setup>
import {useRouter,useRoute} from 'vue-router'
import VueCookies from 'vue-cookies'
import {getCurrentInstance, ref,watch} from "vue"
import { ArrowDown } from '@element-plus/icons-vue'
const {proxy} = getCurrentInstance();
const router = useRouter();
const route = useRoute();
const menuList = ref([
  {
    title: "博客",
    icon: "icon-blog",
    open: true,
    children: [
      {
        title: "博客管理",
        path: "/blog/list",
      },
      {
        title: "分类管理",
        path: "/blog/category",
      },
    ],
  },
  {
    title: "专题",
    icon: "icon-zhuanti",
    open: true,
    children: [
      {
        title: "专题管理",
        path: "/special/list",
      },
    ],
  },
  {
    title: "设置",
    icon: "icon-settings",
    open: true,
    children: [
      {
        title: "个人信息设置",
        path: "/settings/my",
      },
      {
        title: "博客成员",
        path: "/settings/user",
      },
      {
        title: "系统设置",
        path: "/settings/sysInfo",
        roleType: 1,
      },
    ],
  },
  {
    title: "回收站",
    icon: "icon-delete",
    open: true,
    children: [
      {
        title: "回收站",
        path: "/recovery/list",
      },
    ],
  },
]);

const openClose =(index)=>{
    const open = menuList.value[index].open;
    menuList.value[index].open=!open;
}
const userInfo=ref({});
const init=()=>{
  userInfo.value=VueCookies.get("userInfo");
  userInfo.value.avatar = proxy.globalInfo.imageUrl
  +userInfo.value.avatar;
}
init();
const activePath = ref(null);
watch(route,(newVal,oldVal)=>{
  activePath.value=newVal.path;
},{immediate:true,deep:true});
</script>

<style lang="scss">
.layout{
  .header{
        border-bottom: 1px solid #ddd;
        display:flex;
        align-items: center;
        justify-content: space-between;
        .logo{
          font-size: 20px;
        }
        .user-info{
          display: flex;
          align-items: center;
          .nick-name{
            cursor: pointer;
            color:rgb(76, 187, 231);
            .icon-close{
            font-size:14px;
          }
          .avatar{
            margin-left: 10px;
            width:50px;
            border-radius: 25px;
            img{
              width:100%;
            }
          }
          }
        }
    }
    .container{
        padding-top:10px;
        background: #f5f6f7;
        height: calc(100vh - 60px);
        .left-aside{
           padding-left:15px;
           padding-right:15px;
           width:250px;
           .post-btn{
               background: green;
               color:#fff;
               height:40px;
               width:100%;
           }
           .menu-panel{
             margin-top:5px;
               ul,li{
                   padding: 0px;
                   margin: 0px;
                   list-style: none;
               }
               .menu-title-p{
                 padding:0px 5px;
                 line-height:40px;
                 cursor: pointer;
                   display: flex;
                   .iconfont{
                     font-size:18px;
                     color: #91949a;
                   }
                   .menu-title{
                     flex:1;
                     color: #3f4042;
                   margin-left: 5px;
               }
               .open-close{
                 font-size:16px;
                 width:20px;
               }
               }
               .menu-title-p:hover{
                 background: #ddd;
               }
               .sub-menu{
                 padding-left: 20px;
                 font-size: 14px;
                 .sub-menu-item{
                   padding:0px 10px;
                   display:block;
                   line-height: 30px;
                   text-decoration: none;
                   color:#3f4042;
                 }
                 .active{
                 }
                 .sub-menu-item:hover{
                 background: #ddd;
               }
               }
           }
        }
        .right-main{
           background: #fff;
        }
    }
}
</style>