1. 准备组件 .

<template>  <h2>about</h2> </template>![请添加图片描述](https://img-blog.csdnimg.cn/f0f65fb6e22046a397fa538ee311a679.png)   <script>  export default {   name: 'About'  } </script>  <style> </style> 

<template>  <h2>home</h2> </template>  <script>  export default {   name: 'Home'  } </script>  <style> </style> 

2. 导入vue-router

现在vue-router默认版本为4，只能在vue3中使用。如果你想在那里vue使用2，需要指定vue-router的版本为@3

打开终端，安装

npm i vue-router@3 

vue-router相当于一个插件，要引用。 打开main.js

import Vue from 'vue' import App from './App.vue' // 引入VueRouter import VueRouter from 'vue-router' // 引入路由器 import router from './router' Vue.config.productionTip = false  // 应用插件 Vue.use(VueRouter)  new Vue({ 
           render: h => h(App),   router }).$mount('#app') 

3. 定义路由规则创建路由对象

// 该文件专门用于创建路由器的整个应用 import VueRouter from 'vue-router' // 引入组件 import About from '../components/About' import Home from '../components/Home'  // 创建和暴露一个路由器 export default new VueRouter({ 
          routes: [   { 
            path:'/about',    component:About   },   { 
            path:'/home',    component:Home
		},
	]
})

4. router-link

<router-link class="list-group-item" active-class="active" to="/about">About</router-link>
<router-link class="list-group-item" active-class="active" to="/home">Home</router-link>

5. router-view显示页面

<!-- 指定组件呈现位置 -->
<router-view></router-view>

App.vue

<template>
  <div>
      <div class="row">
        <div class="col-xs-offset-2 col-xs-8">
          <div class="page-header"><h2>Vue Router Demo</h2></div>
        </div>
      </div>
      <div class="row">
        <div class="col-xs-2 col-xs-offset-2">
          <div class="list-group">
            <!-- <a class="list-group-item active" href="./about.html">About</a> -->
            <!-- <a class="list-group-item" href="./home.html">Home</a> -->
			<router-link class="list-group-item" active-class="active" to="/about">About</router-link>
			<router-link class="list-group-item" active-class="active" to="/home">Home</router-link>
          </div>
        </div>
        <div class="col-xs-6">
          <div class="panel">
            <div class="panel-body">
				<!-- 指定组件呈现位置 -->
				<router-view></router-view>
            </div>
          </div>
        </div>
      </div>
    </div>
</template>

<script>

export default {
  name: 'App',
  
}
</script>

      </div>
          </div>
        </div>
      </div>
    </div>
</template>

<script>

export default {
  name: 'App',
  
}
</script>