6-4.htm

来自「JavaScript学习的网页教程。内容简单易懂」· HTM 代码 · 共 33 行

HTM
33
字号
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>动态给自定义对象加入一个新的属性</title>
<script language="javascript">
function Mycomputer(mybrand,myyear,myowner)
{
	this.brand=mybrand;
	this.year=myyear;
	this.owner=myowner;
}
function show(obj_name,obj)
{
	var result="",i="";
	document.writeln("<h3>"+obj_name+"计算机信息如下:</h3>");
	for(i in obj)
		result+=obj_name+"."+i+"="+obj[i]+"<br>";
	document.writeln(result);
}
</script>
</head>
<body>
<script language="javascript">
var myMycomputer=new Mycomputer("HP",1999,"Liao");
	myMycomputer.current="IBM";  
	//动态给对象Mycomputer的实例myMycomputer加入一个新的属性,不会影响其他实例和对象本身
var hercomputer=new Mycomputer("Compaq",2001,"Xie");
show("MyComputer",myMycomputer);
show("HerComputer",hercomputer);
</script>
</body>
</html>

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