js承袭 _JavaScript

js继承
1、prototype方式
   var BaseClass = function ()
    {
       this.name = "3zfp";
    this.age = 100 ;
    this.ToString = function (){return this.name + " " + this.age;}
   }

var Derived = function ()
{
        this.address = "ShenZhen";
}

Derived.prototype = new BaseClass();
var instance = new Derived();
instance.ToString();

2、apply方式
   var BaseClass = function ()
    {
        this.name = "3zfp";
       this.age = 100;
       this.ToString = function(){return this.name + " " + this .age;}
    }

    var Derived = function ()
    {
       BaseClass.apply(this,new Array());
       this.address = "ShenZhen" ;
   }

   var instance = new Derived();
   instance.ToString();

3、call+prototype 方式
   var BaseClass = function(name,age)
   {
       this.name = name;
       this.age = age;
       this.ToString = function(){return this .name + " " + this.age;}
   }

var Derived = function()
{
       BaseClass.call(this,"3zfp",100);
       this.address = "ShenZhen";
}

Derived.prototype = new BaseClass();
var instance = new Derived();
instance.ToString();

引用地址：http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece763105392230e54f733628a854d2c90c05f93130716017bb3e87a69435393d82f2747f41802bdb12b71350426bd98df883d87fdcd763bcd7a742613de0005d368b8bb3732b051872ae8b86fe5&p=8d3dd71386cc42af5dfce62d021dcf&user=baidu&fm=sc&query=js+%BC%CC%B3%D0&qid=920dcd5801261263&p1=8

1楼han_yankun20093天前 08:35: 学习了