ExtJS是一个Ajax框架，是一个用javascr ipt写的，用于在客户端创建丰富多彩的web应用程序界面。ExtJS可以用来开发RIA也即富客户端的AJAX应用-ExtJS is an Ajax framework, is a written with javascr ipt for the client to create a variety of web application programming interfaces. ExtJS can be used to develop R

Extjs2.2 API中文文档，有助于的Extjs更深的了解-Extjs help