简单教程
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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> <p>结果: </p> <script> $(function () { var $p = jQuery( "p" ), p = $p[ 0 ]; $p.append( jQuery.hasData( p ) + " " ); // false $.data( p, "testing", 123 ); $p.append( jQuery.hasData( p ) + " " ); // true $.removeData( p, "testing" ); $p.append( jQuery.hasData( p ) + " " ); // false $p.on( "click", function() {} ); $p.append( jQuery.hasData( p ) + " " ); // true $p.off( "click" ); $p.append( jQuery.hasData( p ) + " " ); // false }) </script> <footer>简单教程,简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果: