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複製代碼 代碼如下:
<script src="Jquery1.7.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$('#btn').click(function () {
//$('span:hidden').addClass('class1').show();
$(':hidden').addClass('class1').show();
//$('div:visible').addClass('class1');
$('div:visible').addClass('class1');
})
})
</script>
</head>
<body>
<form id="form1">
<div>
第一層</div>
<span style="display: none;">Hidden</span>
<input type="button" id="btn" value="顯示" />
</form>
</body>
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