output: {
path: resolve(__dirname, 'dist'),
filename: options.dev ? '[name].js' : '[name].js?[chunkhash]',
chunkFilename: 'chunk[id].js?[chunkhash]',
publicPath: options.dev ? '/assets/' : publicPath
},

npm install --save-dev babel-core babel-loader babel-plugin-syntax-dynamic-import babel-preset-es2015

use: [{
loader: 'babel-loader',
options: {
presets: [['es2015', {modules: false}]],
plugins: ['syntax-dynamic-import']
}
}]

//全局组件
Vue.component('AsyncComponent', () => import('./AsyncComponent'))

//局部注册组件
new Vue({
 // ...
 components: {
 'AsyncComponent': () => import('./AsyncComponent')
 }
})

// 如果不是default导出的模块
new Vue({
 // ...
 components: {
 'AsyncComponent': () => import('./AsyncComponent').then({ AsyncComponent }) => AsyncComponent
 }
})

const AsyncComponent= () => import('./AsyncComponent')

new VueRouter({
 routes: [
 { path: '/test', component: AsyncComponent}
 ]
})

const store = new Vuex.Store()

import('./store/test').then(testModule => {
 store.registerModule('test', testModule)
})