菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
<script src="https://cdn.staticfile.net/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
	var treeTraversal = $("span").parents().map(function(){
		return this.tagName;}).get().join(", ");
	$("span").after("<h2>" + treeTraversal + "<h2>");
});
</script>
</head>

<body>
	<div>    
		<p>             
			<span>这是一个span元素，我的祖先元素是: </span>    
		</p>  
	</div>
</body>

</html>
              