Objective-C的学习心得

1、永远不要假定某个类型的存储大小，包括Int型

Beginner的参照：

http://www.getappninja.com/blog/how-to-create-a-simple-shooting-game-ios-6-peashooter-part-one

http://www.getappninja.com/blog/how-to-create-a-simple-shooting-game-ios-6-peashooter-part-two

IOS开源项目：从github获得

http://www.csdn.net/article/2013-06-04/2815530-GitHub-iOS-open-source-projects-one