const Home = resolve => {
  import("@/components/home/home.vue").then( module => {
      resolve(module)
  }
}

export default [{
  path: '/home',
  name:'home',
  component: Home,
  meta: {
    requireAuth: true, // 添加該屬性可以判斷出該頁面是否需要登錄顯示
  },
}]

const router = new Router({
  routes: [
    {
       path: '/home',
       component: (resolve)=> {
         require(['../components/home/home'], resolve) // 省去了在上面去import引入
       }
     }
  ]
})

// r就是resolve// 路由也是正常的寫法 這種是官方推薦的寫的 按模塊劃分懶加載 
const Home = r => require.ensure([], () => r(require('../components/home/home')), 'home');
const router = new Router({
  routes: [
    {
     path: '/home/home',
     component: Home,
     name: 'home' ,
    }
  ]
})

<input type="button" @click="showchild" value="show"> //點擊按鈕后，show為真,先獲取child組件，再渲染div內(nèi)容 
<div id="contain" v-if="show">
  <child></child>
</div>

data () {
  return {
    msg: 'Welcome to Your Vue.js App',
    show:false
  }
},
methods: {
  showchild:function(){
    this.show=true;
  }
},
components: {
  'child': function(resolve) {
    require(['./components/child.vue'], resolve);
  }
}