for-in语句和document.write换行

javascript直接写document，for-in用来枚举，如下图：

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
<script language="Javascript" type="text/javascript" >
    for (var propName in window) {
        document.write(propName);
        document.write("<br/>");
    }
</script>
</head>
<body>
</body>
</html>

 

posted @ 2013-05-07 21:20  roytanlu  阅读(187)  评论(0)  编辑  收藏  举报