<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.49028c.com/" />
<title>武林網</title>
<style type="text/css">
div
{
border:1px solid green;
height:50px;
}
span{border:1px solid blue;}
</style>
<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("div:has(span)").css("border","1px solid red")
})
})
</script>
</head>
<body>
<div>我不含span</div>
<div> <span>我是span</span></div>
<button>點擊查看效果</button>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.49028c.com/" />
<title>武林網</title>
<style type="text/css">
div
{
border:1px solid green;
height:50px;
}
span{border:1px solid blue;}
</style>
<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("*:has(span)").css("border","1px solid red")
})
})
</script>
</head>
<body>
<div>我不含span</div>
<div><span>我是span</span></div>
<p><span>我是span</span></p>
<button>點擊查看效果</button>
</body>
</html>
