jQuery是一款免费且开放源代码的JS代码库，由John Resig创建。jQuery是免费、开源的，使用MIT许可协议。它是轻量级的js库，它兼容CSS3，还兼容各种浏览器（IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+）。jQuery使用户能更方便地处理HTML documents、events、实现动画效果，并且方便地为网站提供AJAX交互。-jQuery is a free and open source JS code library created by John Resig. jQuery is free, open source, using the MIT license. It is lightweight js library, which is compatible with CSS3, also compatible with various browsers (IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+). jQuery so that users can more easily deal with HTML documents, events, achieve animation effects, and easy for your site AJAX interaction.