二、注册命名空间：
Type.registerNamespace("Demo");
三、为类添加构造函数、属性、方法。
Demo.sample=function(){}
四、注册类。
Demo.Person.registerClass('Demo.sample ', null, Sys.IDisposable);
下面是一个具体的实例：
Namespace.js
Type.registerNamespace("Demo");
Demo.Person = function(firstName, lastName, emailAddress) {
this._firstName = firstName;
this._lastName = lastName;
this._emailAddress = emailAddress;
}
Demo.Person.prototype = {
getFirstName: function() {
return this._firstName;
},
getLastName: function() {
return this._lastName;
},
getName: function() {
return this._firstName + ' ' + this._lastName;
},
dispose: function() {
alert('bye ' + this.getName());
}
}
Demo.Person.registerClass('Demo.Person', null, Sys.IDisposable); Namespace.aspx代码：
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
This example creates an instance of the Person class
and puts it in the "Demo" namespace.
type="button" onclick="return OnButton1Click()" />