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代码编辑器:
<!DOCTYPE html> <meta charset="utf-8"> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <script src="https://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script> <style> .ancestors *{ display: block; border: 2px solid lightgrey; color: lightgrey; padding: 5px; margin: 15px; } </style> <script> $(document).ready(function(){ var DOM=document.getElementsByClassName("greatgp"); $(".child").parentsUntil(DOM,"ul").css({"color":"red","border":"2px solid red"}); }); </script> <body class="ancestors"> body (曾曾祖父节点) <div style="width:500px;" class="greatgp">div (曾祖父节点) <ul>ul (祖父节点) <li>li (直接父节点) <span class="child">span</span> </li> </ul> </div> <footer>简单教程,简单编程<br/>Copyright © 简单教程 www.twle.cn</footer> <!-- 在这个例子中,我们使用DOM在类名为“child”span元素与名称为“ancestors”div元素之间来选择ul祖先。-->
运行结果: