说明： 此书描述了苹果开发中优秀项目的经典源码片段，让你了解这些优秀项目为什么能产生大的访问量，是应用开发者不可多得的好书。 (The book describes the outstanding items in the Apple Developer classic source fragment, so that you understand why these outstanding projects can generate a large number of visits, application developers, rare books....
)
