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(){ $("button").click(function(){ $("input:text").val(function(n,c){ return c + " Gates"; }); }); }); </script> </head> <body> <p>Name: <input type="text" name="user" value="Bill" /></p> <button>的值</button> </body> </html>
查看结果: