js承袭
日期：2014-05-16 浏览次数：20451 次
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、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
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