node.js调用模块

1、新建调用的js

第一种调用没有初始值的模块

var    http    =    require('http');
var User = require('./module/User');//引入的是user模块 不是user.js
http.createServer(function    (request,    response)    {
        response.writeHead(200,    {'Content-Type':    'text/html;    charset=utf-8'});
    if(request.url!=="/favicon.ico"){    //清除第2此访问
        user = new User();  //实例化这个模块
        user.id = 1;
        user.name = "张三";
        user.age = 20;
 
        user.enter();
 
        response.end('');
    }
}).listen(8888);
console.log('Server    running    at    http://127.0.0.1:8888/');

function User(){
    this.id;
    this.name;
    this.age;
    this.enter = function(){
      console.log('我叫'+this.name+',我的年龄是'+this.age);
    }
}
module.exports    =    User;//导出这个模块/类，让其他js能引入

第二种调用初始值的模块

var    http    =    require('http');
var User = require('./module/User');//引入的是user模块 不是user.js
http.createServer(function    (request,    response)    {
        response.writeHead(200,    {'Content-Type':    'text/html;    charset=utf-8'});
    if(request.url!=="/favicon.ico"){    //清除第2此访问
        user = new User(1,"zhangsan",20);  //实例化这个模块
 
        user.enter();//执行方法
 
        response.end('');
    }
}).listen(8888);
console.log('Server    running    at    http://127.0.0.1:8888/');

function User(id,name,age){
    this.id = id;
    this.name = name;
    this.age = age;
    this.enter = function(){
      console.log('我叫'+this.name+',我的年龄是'+this.age);
    }
}
module.exports    =    User;//导出这个模块/类，让其他js能引入

2、一个模块继承另一个模块，然后调用

调用的js

var    http    =    require('http');
 
var Teacher = require('./module/Teacher'); 
 
http.createServer(function    (request,    response)    {
        response.writeHead(200,    {'Content-Type':    'text/html;    charset=utf-8'});
    if(request.url!=="/favicon.ico"){    //清除第2此访问  
 
         teacher = new Teacher(1,"zhangsan",20);
         teacher.enter();//对父类的方法调用
         teacher.teach(response);//调用自己的方法
 
        response.end('');
    }
}).listen(8888);
console.log('Server    running    at    http://127.0.0.1:8888/');

User类

function User(id,name,age){
    this.id = id;
    this.name = name;
    this.age = age;
    this.enter = function(){
      console.log('我叫'+this.name+',我的年龄是'+this.age);
    }
}
module.exports    =    User;//导出这个模块/类，让其他js能引入

Teacher类   并且继承User类

var User = reqire('./User');
function Teacher(id,name,age){
    User.apply(this,[id,name,age]);//这句话实现了继承User这个模块,并且初始化，里面的id，name，age 就是Teacher(id,name,age)里面传进来的
 
    this.teach = function(res){
        res.write(this.name+"讲课");
    }
 
}
module.exports    =    Teacher;//导出这个模块/类，让其他js能引入