<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="jQueryNote/jquery-1.8.2.js" type="text/javascript"></script> <script type="text/javascript">
//:lt(3)小于三的过滤器 $(function () { $('li :lt(3)').css('font-size','30px'); }); </script> </head> <body> <ul> <li>你好</li> <li>中国人</li> <li>这是</li> <li>哪里</li> <li>物理</li> <li>路径</li> </ul> </body> </html>