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"> function changeSize() { $(this).animate({fontSize:"+=3px"}); } function changeSpacing() { $(this).animate({letterSpacing:"+=2px"}); } $(document).ready(function(){ $("body").delegate("p","click",changeSize); $("body").delegate("p","click",changeSpacing); $("button").click(function(){ $("body").undelegate("p","click",changeSize); }); }); </script> </head> <body> <p>落。</p> <p>段落。</p> <p>本段落。</p> <button>从 p delegate() changeSize()</button> </body> </html>
查看结果: