模块化导入导出

CommonJs写法规范
moudel.export = {}//导出
let util = require('./util.js')

ES6
export var a = 10
export var b = 10
export var c = 10
export default {}
import {a,b,c} from './util.js'
import util from './util.js'

CommonJs写法规范
moudel.export = {}//导出
let util = require('./util.js')

ES6
export var a = 10
export var b = 10
export var c = 10
export default {}
import {a,b,c} from './util.js'
import util from './util.js'