<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <script src="js/jquery.js"></script> <script> //扩展jquery插件库 jQuery.fn.extend({ //改变背景颜色 fn1:function(){ this.css(‘background-color‘,‘red‘); }, //改变大小 fn2:function(){ this.css(‘font-size‘,‘30px‘); } }); </script> <script> $(function(){ $(‘#result‘).bind(‘click‘,function(){ //1.调用fn1方法 $(‘#result‘).fn1(); //2.调用fn2方法并且传参 $(‘#result‘).fn2(‘30px‘); }); }); </script> </head> <body> <div id="result"> aaaaaaaaaaaaaaaaa </div> </body> </html>
原文：http://www.cnblogs.com/leigood/p/4922278.html