新版本的变更 / Objective-C 2013: Modules
Importing a module
Automatic framework linking
Submodules
A module does not depend on your macros
Requiring a call to super
The designated initializer
A module does not depend on your macros
此示例属于完整版，可在应用商店购买：
Code Recipes
App Store
已经购买？登录您的账户