51help TIY
码：
<html> <head> <script type="text/javascript" src="../jquery/jquery.js" tppabs="http://www.51help.tk/jquery/jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#btn1").click(function(){ $("div").data("greeting", "Hello World"); }); $("#btn2").click(function(){ alert($("div").data("greeting")); }); }); </script> </head> <body> <button id="btn1">到 div 元素</button><br /> <button id="btn2">到 div </button> <div></div> </body> </html>
查看结果: