个人认为有关Symbian架构描述比较好的书籍，里面有关Symbian核心活动对象的描述尤其详细而具体，而非一般文档里面描述的那样，就举个活动对象如何使用的例子，适合Symbian开发者的提升！-Symbian individuals that the relatively good fr a mework to describe the book, which related to the core activities of the target Symbian descr iption particularly detailed and specific, rather than inside the document, as described on activities give an example of how to use objects for Symbian developers to upgrade!