Posted in Javascript onFebruary 07, 2007
From: JavaEye.com prototype提供了一套JavaScript面向对象基础设施,我们可以使用它来进行面向对象编程,定义对象类型方式如下:
var Person = Class.create(); Person.prototype = { initialize : function(name, age) { this.name = name; this.age = age; }, toString : function() { document.writeln("[name]:"+this.name+"<br>"+"[age]:"+this.age); } }
先使用Class.create()来创建一个对象类型,然后定义该对象类型,注意initialize方法是Person的构造器,完整的HTML如下:
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test Object</title> <script type="text/javascript" src="prototype.js"></script> </head> <body> <script type="text/javascript"></DIV> <DIV class=code>var Person = Class.create(); Person.prototype = { initialize : function(name, age) { this.name = name; this.age = age; }, toString : function() { document.writeln("[name]:"+this.name+"<br>"+"[age]:"+this.age); } }</DIV> <DIV class=code>var person = new Person("robbin",30); person.toString(); </script> </body> </html>
JavaScript使用prototype定义对象类型
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