有哪些方法可以使vue+webpack实现异步加载

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

export default [{
 path: '/home',
 name:'home',
 component: Home,
 meta: {
 requireAuth: true, // 添加该属性可以判断出该页面是否需要登录显示
 },
}]

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// 路由也是正常的写法 这种是官方推荐的写的 按模块划分懒加载 
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"> //点击按钮后，show为真,先获取child组件，再渲染p内容 
<p id="contain" v-if="show">
 <child></child>
</p>

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);
 }
}