# 2 03.后台主布局实现

接上篇 动态页面标题实现，这里我们实现整个后台页面的布局

* #### 定义组件
  * * src/layouts/admin.vue
    * src/layouts/components/FHeader.vue
    * src/layouts/components/FMain.vue
    * src/layouts/components/FTagList.vue

```js
// src/layouts/admin.vue
<template>
    <el-container>
        <el-header>
            <f-header/>
        </el-header>

        <el-container>
            <el-aside>
                <f-main/>
            </el-aside>

            <el-main>
                <f-tag-list/>
                <router-view></router-view>
            </el-main>
        </el-container>
    </el-container>
</template>


<script setup>
import FHeader from './components/FHeader.vue';
import FMain from './components/FMain.vue';
import FTagList from './components/FTagList.vue';
</script>
```

```js
// src/layouts/components/FHeader.vue
<template>
    <div>
        头部
    </div>
</template>


// src/layouts/components/FMain.vue
<template>
    <div>
        主体
    </div>
</template>

// src/layouts/components/FTagList.vue
<template>
    <div>
        标签
    </div>
</template>ate>
```

* #### 修改路由

  > src/router/index.js

```js
// 2.定义一些路由
const routes = [
    { 
        path: "/", 
        component: Admin, 
        children:[{
            path: "/", 
            component: Index,
            meta: { 'title': '首页' } 
        }]

    },


    { path: "/about", component: About, name: "about", meta: {'title': '关于'}},
    { path: "/login", component: Login, name: "login", meta: {'title': '登录'}},
    { path: '/:pathMatch(.*)*', name: 'NotFound', component: NotFound, meta: {'title': '404'} },
]
```

<div><img src="C:%5CUsers%5CAdministrator.DESKTOP-UK43ECI%5CAppData%5CRoaming%5Cmarktext%5Cimages%5C2023-02-20-15-24-52-image.png" alt=""> <img src="C:%5CUsers%5CAdministrator.DESKTOP-UK43ECI%5CAppData%5CRoaming%5Cmarktext%5Cimages%5C2023-02-20-15-27-19-image.png" alt=""> <figure><img src="https://2134947750-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvILwbD2PrkBCkSitM3m4%2Fuploads%2FLXuhz5EJKxVKAoj0TvJ9%2F2023-02-20-15-24-52-image.png?alt=media&#x26;token=9c9a1f9a-da75-4eaa-b5a9-37a67202e37b" alt=""><figcaption></figcaption></figure></div>

<figure><img src="https://2134947750-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvILwbD2PrkBCkSitM3m4%2Fuploads%2F7kfU4OX90jB99ex2NcC7%2F2023-02-20-15-27-19-image.png?alt=media&#x26;token=8fb97d8d-1164-43b1-9ca1-48b4b6bc72e8" alt=""><figcaption></figcaption></figure>


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