asp.net ajax ÀàÐÍϵͳdemo

 <mce:script language=javascript><!--

//×¢²áÃüÃû¿Õ¼ä
Type.registerNamespace("Demo");
Demo.Message=function(content,publishTime)
{
this._content = content;
this._publishTime = publishTime;
}

Demo.Message.prototype=
{
get_content: function()
{
return this._content;
},

get_publishTime: function()
{
return this._publishTime.format("yyyy-MM-dd HH:mm:ss");
},

toString: function()
{
return this.get_content() + " " + this.get_publishTime();
}
}

//×¢²áÀà
Demo.Message.registerClass("Demo.Message");

Demo.IContent=function()
{

}

Demo.IContent.prototype
{
showContent:function()
{}
}

//×¢²á½Ó¿Ú
Demo.IContent.registerInterface("Demo.IContent");


Demo.MessageWithUserId = function(userId, content, publishTime)
{
Demo.MessageWithUserId.initializeBase(this, [content, publishTime]);

this._userId = userId;
}
// ¶¨ÒåDemoÃüÃû¿Õ¼äϵÄMessageWithUserIdÀàµÄ·½·¨
Demo.MessageWithUserId.prototype =
{
get_userId: function()
{
return this._userId;
},

showContent: function()
{
return Demo.MessageWithUserId.callBaseMethod(this, 'get_content')
},

// callBaseMethodÓÃÓÚµ÷ÓûùÀàµÄ·½·¨
toString: function()
{
return this.get_userId() + " " + Demo.MessageWithUserId.callBaseMethod(this, 'toString');
}
}
// ×¢²áÒ»¸ö¼Ì³Ð×ÔDemo.MessageÀàºÍDem