<html lang="en"><head> <meta charset="utf-8"> <title>:tabbable Selector 实例</title> <link rel="stylesheet" href="//apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css"> <style> input { border: 1px solid #000; } div { padding: 5px; } </style> <script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script> <script src="//apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script></head><body> <div><input value="没有 tabindex"></div><div><input tabindex="5" value="正的 tabindex"></div><div><input tabindex="-1" value="负的 tabindex"></div> <script>$( ":tabbable" ).css( "border-color", "red" );</script> </body></html>