weimingtom的待宵草

【翻译】(objc-1)介绍   see https://developer.apple.com/library/mac/#documentation/cocoa/conceptual/objectivec/Introduction/introObjectiveC.html   原文见 https://developer.apple.com/library/mac/#docume...

【翻译】(objc-2)对象，类和消息   see https://developer.apple.com/library/mac/#documentation/cocoa/conceptual/objectivec/Chapters/ocObjectsClasses.html   原文见 https://developer.apple.com/library/mac/#docu...