使用构造函数创建JavaScript对象 -- JavaScript教程

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		<title>使用构造函数创建JavaScript对象</title>		
	</head>
	<body>
		<script type="text/javascript">
		//定义构造函数
		function Site(url, name)
		{
		    this.url = "www.dreamdu.com";
		    this.name ="梦之都";
		}
		
		//使用构造函数产生一个JavaScript对象的实例
		var mysite = new Site();
		alert(mysite.url);
		</script>
		
		<p>直接法创建JavaScript对象</p>
		<script type="text/javascript">
		var site = {};
		site.URL = "www.dreamdu.com";
		site.name = "梦之都";
		site.englishname = "dreamdu";
		site.author = "可爱的猴子";
		site.summary = "免费的网页设计教程";
		site.pagescount = 100;
		site.isOK = true;
		site.startdate = new Date(2005, 12);
		site.say = function(){alert(this.englishname+" say : hello world!")};
		site.age = function(){var theage=(new Date().getFullYear())-site.startdate.getFullYear();alert(this.name+"已经"+theage+"岁了!")}
		site.age();
		</script>

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