Objective-C

  /** Count the word length in the text file **/# import int main (INT argc, const char * argv []) {file * wordfile = fopen ("words.txt", "R"); char word [1, 100]; while (fgets (word, 100, wordfile) {// change the linefeed to '\ 0' word [strlen

First define a human parent class Definition: /// Human. h // OOP // created by Jimmy. yang on 11-2-9. // copy 2011 _ mycompanyname __. all rights reserved. // # import @ interface human: nsobject {bool sex;} + (void) tostring;-(void) showsex; @

If the lifecycle of an object is obvious, it is easy to know when to use a new object and when it is no longer needed. In this case, you can use manual retain and release to determine whether a person is born or dead. However, sometimes it is not

/* Used to determine whether the object is the type provided by the parameter (the parameter can be the class of the parent class)Parameter example: [nsobject class];  */ - (Bool) iskindofclass :( class) Aclass; /* Used to determine

9.1 Preface Memory management is very important in objective-C 2.0. If memory management is well performed, the most intuitive response lies in yourProgramCrash. If your program is robust and stable, be sure to understand the memory management. 9

Objective-C has a brain problem. Description: The asiformrequest class is a subclass of the asihttprequest class. In the function, retain is performed on the asiformrequest pointer returned in another place. Out of this function, the retain

ArticleDirectory 1. Preface 1. Preface I believe that the iPhone will soon be released in China. Like the iPod Touch we can buy in China through regular channels, the iPhone is also an exciting product. When the iPhone is

Most beginners who have a basic development experience on other platforms are eager to see xcode. After seeing the interface builder, they are eager to get started with the objective-C syntax, the first thought becomes daunting. Okay, I'm talking

From the first applicationProgramStart with helloworld: Objective-C version: # Import Foundation / Foundation. h > Int Main ( Int Argc, Const Char * Argv []) {NSAID utoreleasepool * Pool = [[NSAID utoreleasepool alloc]

I am too lazy to write this Summary. I directly transferred it to an article on the Internet.Article: Http://blog.csdn.net/favormm/article/details/6928432 First look at the two runloop example, source: http://paste.lisp.org/display/86524 first: #

So far, I have seen two methods of serialization implemented by OC: nskeyedarchiver and nspropertylistserialization. In both serialization methods, nsdata is the target of serialization. The difference between the two methods is that

Three Principles of Memory Management in OC: 1. Who created (new or alloc) and who release. 2. If you get an object from a method, assume that the retaincount of this object is 1 and has been set to autorelease. You don't need it, and you

I recently developed the iPhone and used cocoa. I feel that the cocoa design is exquisite and the objecitive-C syntax is very simple and easy to use. Therefore, I want to check whether there is a runtime environment in windows, this makes it easy to

Admit that I am the Title party, because in the obj-C world, there is no official saying like "interface" or "generic. However, there are two concepts close to OBJ-C" Informal protocol (Interface) "And" Protocal) ". Informal agreement Although

I accidentally applied for an iPhone development role some time ago. I was asked about the similarities and differences between objc and C ++. I always expressed my preference for C ++. I wrote a bit in two languagesCodeI think I can write some text

This section discusses how to use declarative attributes and the automatically generated method inside the system as the property access interface, and the instance variable Management introduced in this section. The declarative properties

** In the following content, interface refers to interfaces in the traditional sense, and @ interface refers to the type standard concept in objective-C to avoid confusion. It's a bit strange to see this chapter. In fact, you only need to know

C # sister: Aunt, I 've been walking my dog so early today ?? Aunt Objective-C: Yes, my dog is old, and I am a little insomnia. I started to get up early... you see, this dog is so intelligent and obedient. // ********* File Dog. h **************** #

C # sister:Why is the cost of memory space controlled by the operating system so high? I purchased a huge amount of memory space, and later found that it was actually on the hard disk! Virtual Memory! TMD! Aunt Objective-C:The operating system makes

In Objective-C language, there are two ways to pass the method: ① Selector ② Blocks. This article mainly describes Selector. Blocks will be summarized later. Message Passing is the core mechanism of Objective-C language. In Objective-C, there is no