stdlib.js

// 打包模塊
module.exports = stdlib;

// 聲明方法
stdlib.prototype.toString = toString;
stdlib.prototype.talk = talk;

// 聲明變量
stdlib.prototype.className = null;

// 構造方法
function stdlib(name)
{
	this.className = 'class: ' + name;
	// 獲取IO流
	this.stdin = process.stdin;
	this.stdout = process.stdout;
};

// 方法
function toString() {
	return this.className;
};

function talk () {
	var interface = require('readline');
	var rl = interface.createInterface(this.stdin, this.stdout);
	rl.setPrompt('Nerds> ');
	rl.prompt();
	rl.on('line', function (cmd) {
		switch(cmd.trim()) {
			case ':q!': 
				console.log('stream close!');
				process.exit(0);
				break;
			
			case 'girlfriend': 
				console.log('Dude,I bet you won`t :D');
				break;
			

			default: 
				console.log('Say what? I might have heard `' + cmd.trim() + '`');
				break;
			
		}
		rl.prompt();
	}).on('close', function (cmd) {
		console.log('Enjoy js world, have nice day :D');
		process.exit(0);
	});
};

main.js

// 安裝模塊
var stdlib = require('./stdlib');
// 從模塊中創建對象
var tsh = new stdlib('my stdlib');

console.log(tsh.toString());
tsh.talk();

node.js中采用 modules.exports = class 將某個類暴露供安裝對應模塊的文件使用

Lib.js:
module.exports = Lib;
function Lib() {}
...

UserFile.js 2:
var installModule = module('./Lib');
var instanceObject = installModule();
...

類似於java的打包和導入包

file 1:
package com;
public class Lib
{
.....
}


file 2:
import com.lib;
....