6.Extjs 4 in action will be out sooner or later and you could buy this book while there are plenty of books available for extjs 3.xx and most of content can be applied to extjs 4 with little modification.
7.Tomatocart, Tomatocms,qwikioffice and tine20 are built using extjs 3.xx and you may check their demo section and download their full package and start learning from them.
There are plenty powerful extjs coders here in stackoverflow and you may ask questions if they arent already answered.
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Sencha 被超过 200 万开发人员使用，如果您使用 extjs 来构建 RIA，那就太棒了。请查看我提供的资源：
1.Extjs 示例 有大量示例其中一些组件是用 MVC 编写的，您可以遵循它们的示例。
2.关注sencha博客并关注他们关于extjs的帖子。
3.阅读Api 文档并遵循一些可用的 MVC 教程。
4.查看sencha学习中心的文章和截屏视频
5.订阅devzone 文章 有关 extjs 的 rss 提要。
6.《Extjs 4 in action》迟早会出版，你可以购买这本书，同时有很多关于 extjs 3.xx 的书籍，并且大部分内容只需稍作修改即可应用于 extjs 4。
7.Tomatocart，Tomatocms、qwikioffice 和 tine20 是使用 extjs 3.xx 构建的，您可以查看他们的演示部分并下载他们的完整包并开始向他们学习。
stackoverflow 中有很多强大的 extjs 编码器，如果问题尚未得到解答，您可以提出问题。
Sencha is used by over two million developers and its great if you use extjs for building RIAs. Please have a look on resources i provided:
1.Extjs examples has plenty amount of example components which some of them are written in MVC and you may follow their examples.
2.Follow sencha blog and follow their posts regarding extjs.
3.Read Api documentation and follow some of MVC tutorials available.
4.Check sencha learning center's articles and screencasts
5.Subscribe to devzone articles rss feed regarding extjs.
6.Extjs 4 in action will be out sooner or later and you could buy this book while there are plenty of books available for extjs 3.xx and most of content can be applied to extjs 4 with little modification.
7.Tomatocart, Tomatocms,qwikioffice and tine20 are built using extjs 3.xx and you may check their demo section and download their full package and start learning from them.
There are plenty powerful extjs coders here in stackoverflow and you may ask questions if they arent already answered.