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 p