Objective-C编程入门：Stephen G. Kochan的Programming in Objective-C 2.0

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"《Programming in Objective-C 2.0》是Stephen G. Kochan撰写的一本面向初学者的iOS开发入门书籍，英文版第2版。本书旨在教授Objective-C编程语言，适合对iOS和iPhone应用开发感兴趣的学习者。" Objective-C是一种强大的、面向对象的编程语言，它是Apple的iOS和macOS平台上的主要开发语言。这本书详细介绍了Objective-C的基础知识，包括语法、类、对象、消息传递等核心概念。作者Stephen G. Kochan以其丰富的经验和深入浅出的写作风格，引导读者逐步进入Objective-C的世界。在《Programming in Objective-C 2.0》中，读者将学习到： 1. **Objective-C基础**：了解Objective-C的基本语法，包括C语言的扩展，如命名空间（categories）、协议（protocols）和动态类型系统。 2. **面向对象编程**：掌握类（classes）、对象（objects）、继承（inheritance）、封装（encapsulation）和多态性（polymorphism）等面向对象编程的核心概念。 3. **内存管理**：理解Objective-C中的内存管理机制，如引用计数（reference counting）和后来的ARC（Automatic Reference Counting）。 4. **Foundation框架**：熟悉Foundation框架，这是Objective-C开发中不可或缺的一部分，包括NSString、NSArray、NSDictionary等常用数据结构和类。 5. **Cocoa Touch**：学习iOS开发中的Cocoa Touch框架，如何创建用户界面，以及与UI元素交互的事件处理。 6. **实例项目**：书中包含多个实践项目，帮助读者将理论知识应用到实际编程中，增强编程技能。 7. **编程实践**：通过编写简单的应用程序，学习如何利用Xcode集成开发环境进行开发和调试。此外，书中的代码示例清晰易懂，有助于读者更好地理解和应用所学知识。尽管本书是英文版，但对于有志于iOS开发的初学者来说，它提供了全面且系统的Objective-C学习资料。请注意，随着技术的发展，Objective-C虽然仍是Apple平台的重要语言，但Swift已经逐渐成为首选的开发语言。尽管如此，《Programming in Objective-C 2.0》仍然是学习Objective-C和理解iOS底层工作原理的宝贵资源，对于想要深入研究或同时掌握两种语言的开发者尤其有价值。

Acknowledgments

card and address book classes. Methods enable you to perform simple operations such as

adding and removing address cards from the address book, looking up someone, listing

the contents of the address book, and so on.

After you’ve learned how to write Objective-C programs, you can go in several direc-

tions.You might want to lean more about the underlying C programming language—or

you might want to start writing Cocoa programs to run on Mac OS X, or develop more

sophisticated iPhone applications. In any case,Appendix D,“Resources,” will guide you in

the right direction.

Acknowledgments

I would like to acknowledge several people for their help in the preparation of the first

edition of this text. First, I want to thank Tony Iannino and Steven Levy for reviewing the

manuscript. I am also grateful to Mike Gaines for providing his input.

I’d also like to thank my technical editors, Jack Purdum (first edition) and Mike Trent.

I was lucky enough to have Mike review both editions of this text. He provided the most

thorough review of any book I’ve ever written. Not only did he point out weaknesses,

but he was also generous enough to offer his suggestions. Because of Mike’s comments in

the first edition, I changed my approach to teaching memory management and tried to

make sure that every program example in this book was “leak free.” Mike also provided

invaluable input for my chapter on iPhone programming.

From the first edition, Catherine Babin supplied the cover photograph and provided

me with many wonderful pictures to choose from. Having the cover art from a friend

made the book even more special.

I am so grateful to Mark Taber from Pearson for putting up with all delays and for be-

ing kind enough to work around my schedule and to tolerate my consistent missing of

deadlines while working on this second edition. From Pearson I’d also like to thank my

development editor, Michael Thurston, my copy editor, Krista Hansing, and my project

editor, Mandie Frank, who expertly managed the mad dash to the finish line.

As always, my children showed an incredible amount of maturity and patience while I

pulled this book together over the summer (and then into the fall)! To Gregory, Linda,

and Julia, I love you!

Stephen G. Kochan

October 2008

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Objective-C编程入门：Stephen G. Kochan的Programming in Objective-C 2.0

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