print bool objective c

2011-05-11 11:20 anonymous Baidu Encyclopediafont Size:T | T Objective-c is an object-oriented programming language that expands C. Mainly used in Mac OS X and GNUstep, two systems using OPENSTEP standards, while in NeXTSTEP and OpenStep it is the

IntroducedOBJECTIVE-C has postponed many decisions from a cheap period and link period to a run-time period. Whenever possible, it does a lot of things dynamically. This means that it requires not only a compiler, but also a runtime system to

Sometimes we may define a BOOL B; B = YES; NSLog (@ "BOOL -- B --> % @", B); then the running program will crash, this is because % @ prints an object and BOOL is a data type. Use % @ to ensure that the corresponding parameter must be an object and

UnderstandingObjective-CThe features and features are described in this article. Currently, only AppleObjective-CAs a supported language. Let's just look at the details. The differences with C ++ are: All classes in Objective-C must inherit from

The advantage of the Objective-c language is that we are more flexible when writing code, such as we can forward the message to the object we want, or swap the implementation of a method at random. This feature means that objective-c requires not

Outline: Introduction Notes compared with the C Language Objective-C advanced features Development Tool introduction (cocoa toolkit features, framework, source file organization; xcode usage Introduction) Introduction: 1. Objective-C is

Outline: Introduction Notes compared with the C Language Objective-c advanced features Development Tool introduction (cocoa toolkit features, framework, source file organization; XCode usage Introduction) Introduction: 1. objective-c is an extension

From: http://www.cnblogs.com/lm3515/archive/2010/12/20/1911135.html  Objective-C basic tutorial-learning Summary Outline: Introduction Notes compared with the C Language Objective-C advanced features Development Tool introduction (cocoa toolkit

OBJECTIVE-C 2.0 's run-time environment called Morden Runtime,ios and Mac OS X 64-bit programs all run onThis environment, which means that the Mac OS X 32-bit program runs in the old OBJECTIVE-C 1.0 Runtime Environment legacyruntime, here we only

I have seen many development languages, including C, C ++, Java, Python, Ruby, Lua, and PHP, basically, when I first read a new language, I can quickly guess the syntax characteristics of the language. However, when I first read objective-C, I was