for_in.html

来自「web 设计基础 jsp开发教程 大学课件」· HTML 代码 · 共 39 行

HTML
39
字号
<!--for_in.html文件代码-->
<html>
<head>
<title>for...in语句使用示例</title>
<script language="JavaScript">
    function Student(Name,StuNum,Age){
        this.name = Name;
        this.stunum = StuNum;
        this.age = Age;
    }
	function displayProp(obj){
	    var property;

        //使用for_in语句访问对象obj中的所有属性
		for(property in obj)
		   document.writeln(obj[property]+" ,");
		document.writeln("<br>");
	}
</script>
</head>
<body>
<script language="JavaScript">
    var Students=new Array();
    Students[0]=new Student("Mike","s001",20);
    Students[1]=new Student("Jenny","s002",21);
    Students[2]=new Student("Emma","s003",20);
</script>
<br>
<center>
<script language="javascript">
    var i=0;
    while(i<3){
	   displayProp(Students[i]);
	   i=i+1;
	}
</script>
</center>
</body>
</html>

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?