js之：es6 模块加载

index.html

<script type="module" src="index.js"></script>

index.js

import {firstName, lastName, year} from './entry.js'
console.log(firstName)

entry.js

var firstName = 'Michael';
var lastName = 'Jackson';
var year = 1958;
export {firstName, lastName, year};

注：由于同源策略，需启动环境运行才能实现效果