Programming in Objective-C is a concise, carefully written tutorial on the basics of Objective-C and object-oriented programming. The book makes no assumption about prior experience with object-oriented programming languages or with the C language (
此版本为中文版！ Objective-C，通常写作ObjC和较少用的Objective C或Obj-C，是扩充C的面向对象编程语言。它主要使用于Mac OS X和GNUstep这两个使用OpenStep标准的系统，而在NeXTSTEP和OpenStep中它更是基本语言。Objective-C可以在gcc运作的系统写和编译，因为gcc含Objective-C的编译器。
helps you master Xcode's powerful text editor, industry-standard gcc compiler, graphical interactive debugger, mature UI layout and object linkage editor, and exceptional optimization tools. One step at a time, you'll develop a command-line utility,
