node.js的模块化及reqire与exports释义

// 引入文件操作模块
let fs = require('fs')
let filePath = './data/清平调.md'
// 覆盖式写入数据
fs.writeFile(filePath, "云想衣裳花想容\n", function (error) {})

// 追加写入
fs.appendFile(filePath, "春风拂槛露华浓\n", function (error) {})

// 读取数据
fs.readFile(filePath, function (error, data) {
    console.log(data.toString())
})

☁  01 [master] ⚡ node 07.js
云想衣裳花想容
春风拂槛露华浓

☁  custom_module [master] ⚡ tree
.
├── 01.js
├── 02.js
├── 03.js
├── 04.js

let poem = '云想衣裳花想容'
console.log(poem)

require('./02.js')

let poem = '春风拂槛露华浓'
console.log(poem)

require('./03.js')

let poem = '若非群玉山头见'
console.log(poem)

require('./04.js')

let poem = '会向瑶台月下逢'
console.log(poem)

☁  custom_module [master] ⚡ node 01.js
云想衣裳花想容
春风拂槛露华浓
若非群玉山头见
会向瑶台月下逢

let myExports = require('./06.js');
console.log(myExports);
console.log(myExports.name);
let name = '地球三体组织'
let goal = '消灭人类暴政，世界属于三体'
console.log(myExports.goal(name, goal));

let name = '三体'

exports.name = name

exports.goal = function (name, goal) {
    return name + '的目标是：' + goal
}

☁  custom_module [master] ⚡ node 05.js
{ name: '三体', goal: [Function] }
三体
地球三体组织的目标是：消灭人类暴政，世界属于三体