这是一款免费且开放源代码的java scr ipt代码库，由John Resig创建。授权协议为GPL和MIT许可证双协议。它是轻量级的js库(压缩后只有21k) ，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还有一个比较大的优势是，它的文档说明很全，而且各种应用也说得很详细，同时还有许多成熟的插件可供选择。-This is a free and open source java scr ipt code library, by John Resig create. The license agreement for the GPL and MIT licenses agreement. It is lightweight js library (compressed only 21k), which is compatible with CSS3, also compatible with a variety of browser control (IE 6.0+, the FF 1.5+ Safari 2.0+, Opera 9.0+). jQuery so that users can more easily deal with HTML documents, events, animation, and for the site to provide AJAX interaction. jQuery there is a big advantage, it is the whole document describes various applications very detailed, at the same time there are many mature plug-ins are available.