[iPhone] Cheat Sheet: The Objective-C 2.0 Programming Language

Source>
http://cafe.naver.com/mcbugi/6485

맨날 정보만 얻다가, ADC의 "The Objective-C 2.0 Programming Language" 문서 정리한거 올려봅니다.

문서의 Summary 섹션과 중복되는 것도 있지만, 제가 본문을 보면서 나름 중요하다고 생각된것들 Copy & Paste 했습니다. (저작권 문제는 없겠지요?)

Chapter 1. Objects, Classes, and Messaging

In Objective-C, it is valid to send a message to nil - it simply has no effect at runtime and returns nil.

A crucial difference between function calls and messages is that a function and its arguments are joined together in the compiled code, but a message and a receiving object aren’t united until the program is running and the message is sent. Therefore, the exact method that’s invoked to respond to a message can only be determined at runtime, not when the code is compiled
.
.
.
.
.
.
.

you have to move http://cafe.naver.com/mcbugi/6485