分4步驟
1.在App.vue裡面定義好連結
2.寫好定義連結的元件
3.因為我是裝vue的時候 選擇了安裝(自動生成的在router檔案裡面的index.js)在這裡定義好你路由的選項
4.main.js引入router路由(預設是引入了的)
<template>
<div id="app">
<v-header></v-header>
<div class="tab">
<div class="tab-item">
<router-link to="/goods">商品</router-link>
</div>
<div class="tab-item">
<router-link to="/ratings">評論</router-link>
</div>
<div class="tab-item">
<router-link to="/seller">商家</router-link>
</div>
</div>
<router-view></router-view>
</div>
</template>
<script>
import header from './components/header/header.vue'
export default{
components: {
'v-header': header
}
}
</script>
<style lang="stylus" rel="stylesheet/stylus">
#app
.tab
display: flex
width: 100%
height: 40px
line-height: 40px
.tab-item
flex: 1
text-align: center
</style>

都一樣的改一下div的内容就可以了
import Vue from 'vue'
import Router from 'vue-router'
import goods from '../components/goods/goods.vue'
import ratings from '../components/ratings/ratings.vue'
import seller from '../components/seller/seller.vue'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/goods',
name: 'goods',
component: goods
},
{
path: '/ratings',
name: 'ratings',
component: ratings
},
{
path: '/seller',
name: 'seller',
component: seller
}
]
})