Objective-C

For arrays, dictionaries, and collections, objective-C provides an enumeration method to access each element. There are two methods: Method 1: Nsarray * array = ...; member * member; int COUNT = [array count]; for (INT I = 0; I Method 2:

Summary of common nsstring Methods + (ID) stringwithcontentsoffile: path encoding: ENC err Create a new string and set it to the content of the file specified by path. Use the character encoding ENC to return an error on err.

In C #, we use interfaces to implement polymorphism. For example, the interface iob defines a method F. There are two classes A and B that implement the IOB interface. Iob item = new (); Item. F (); // The execution is a.f (); Item = new B ();

Method 1:  View plain [Uiview beginanimations: @ "curl" context: Nil]; // starts the animation. [Uiview setanimationduration: 1.25]; // animation duration [Uiview setanimationcurve: uiviewanimationcurveeaseinout]; // animation speed [Uiview

Form http://topic.csdn.net/u/20091212/14/eed674bc-b074-4269-8450-f9ca659103c0.html   1. The biggest difference: all are object-oriented languages evolved from C. 2. The biggest difference is that C ++ is a static language, while OC is a dynamic

Original post address: http://blog.prosight.me/index.php/2009/09/347 In objective-C, when a class needs to reference another class, that is, to establish a composite relationship, you need to create a pointer to the referenced class in the Class

In addition to using objective-C on a Mac system, it is also possible to download and install the gnustep and objective-C environments for Microsoft's Windows family of operating systems. in this chapter we will release e the steps involved in

I wanted to translate it, but I saw some translations on the Internet, so I directly reproduced it. Original post address: http://www.i-alive.com/post/45/ English address:

Reprinted from: http://blog.eddie.com.tw/2010/12/11/protocol-in-objective-c/ We have mentioned the implicit commitment of OOP, but unlike C ++, objective-C does not have the same objective, if you want to achieve the ability of multiple types in a

PrefaceWhen I was a beginner at objectice-C, I always felt confused about the memory management mechanism of objective-C. The program often experienced memory leaks or inexplicable crashes. I have summarized my research achievements and experience

In objective-C, @ property, @ synthesize, and point syntax are related to two functions. One is the setter function, and the other is the getter function. In the past, we used to define the setter and getter functions. @interface Dog:NSObject{int

The following are the notes for learning objective-C 2.0. The original book I purchased is the original English version. Due to my limited level of English, there may be omissions in understanding. Original book purchase address: Amazon 1.

Objective-CGrammar-something about dictionary objects If the original Yusong Momo article is reprinted, please note: It is reprinted to my independent domain name blogYusong Momo program Research Institute, Original address:

#import #import //MD5- (NSString*)md5Hash { unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5([self bytes], [self length], result); return [NSString stringWithFormat:

Objective-C learning path delegation Mode Objective-CLearning pathDelegateThe mode is described in this article,DelegateMode is very important, such as the official interactive API,DelegateThis mode is very common, for example,

Nonatomic: Non-atomic access, no lock when assigning values to attributes, multi-thread concurrent access will improve performance. If this attribute is not added, both access methods are atomic transaction access by default. (Atomic is a thread

  # Import # Import Int main (INT argc, const char * argv []) {NSAID utoreleasepool * Pool = [[NSAID utoreleasepool alloc] init];Nsstring * str1 = @ "this is a example .";Nsmutablestring * mstr = [[nsmutablestring alloc] init];Nsange substr;//

StatementYou are welcome to repost this article, but please respect the author's Labor achievements. repost this article and keep the statement in this box. Thank you.Article Source: http://blog.csdn.net/iukey This is probably because

Using property in objective-C Disclaimer (read only !) : The original translations of all tutorials provided by this blog are from the Internet and are only for learning and communication purposes. Do not conduct commercial communications. At the

The first thing to note is: Although gnustep can be installed and used on Windows, it is mainly intended for Linux users rather than Windows users. If you have good Linux development experience, it is good to use gnustep. Gnustep is not powerful and