Objective-C-2.0-guide

说明：  Objective-C 2.0 guide是基于iOS的软件开发指南。Objective-C是一种iphone开发的计算机语言，设计为可以支持真正的面向对象编程。Objective-C通过提供类定义，方法以及属性的语法，还有其他可以提高类的动态扩展能力的结构等，扩展了标准的ANSI C语言。
(Objective-C 2.0 guide iOS-based software development guide. Objective-C is a iphone development computer language designed to support a true object-oriented programming. Objective-C is defined by providing classes, methods and properties of syntax, can improve the structure of the class dynamic scalability, extended the standard ANSI C language.)