Node.js调用模块

Node.js调用模块

User.js

function User(){    this.id;    this.name;    this.age;    this.enter = function(){        console.log(this.name + " 进入图书馆");    };}module.exports = User;

var http = require('http');var User = require('./User');http.createServer(function(req,res){    res.writeHead(200,{'Content-Type' : 'text/html; charset=utf-8'});    if(req.url !== "/favicon.ico"){        res.write('<h1>Node.js</h1>');        console.log("running...");        var user = new User();        user.name = "张三";        user.age = 20;        user.id = 1;        user.enter();        res.end('<p>Hello World!!</p>');    }}).listen(3000);console.log("HTTP server is listening at port 3000.");

运行结果：

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改进User.js

function User(id,name,age){    this.id = id;    this.name = name;    this.age = age;    this.enter = function(){        console.log(this.name + " 进入图书馆");    };}module.exports = User;

var http = require('http');var User = require('./User');http.createServer(function(req,res){    res.writeHead(200,{'Content-Type' : 'text/html; charset=utf-8'});    if(req.url !== "/favicon.ico"){        res.write('<h1>Node.js</h1>');        console.log("running...");        var user = new User(1,"李四",20);        user.enter();        res.end('<p>Hello World!!</p>');    }}).listen(3000);console.log("HTTP server is listening at port 3000.");

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创建User的子类：Teacher.js

var User = require('./User');function Teacher(id,name,age){    User.apply(this,[id,name,age]);//应用，继承User父类    this.teach = function(res){        console.log("teach");        res.write(this.name + "讲课");    };}module.exports = Teacher;

var http = require('http');var Teacher = require('./Teacher');http.createServer(function(req,res){    res.writeHead(200,{'Content-Type' : 'text/html; charset=utf-8'});    if(req.url !== "/favicon.ico"){        res.write('<h1>Node.js</h1>');        console.log("running...");        var teacher = new Teacher("1","蔡老师",28);        teacher.enter();        teacher.teach(res);        res.end('<p>Hello World!!</p>');    }}).listen(3000);console.log("HTTP server is listening at port 3000.");