Object-c-Definition of class

Http://www.cnblogs.com/zhangweia/archive/2011/11/01/2231549.html

1. The document is divided into . h: Defines the interface, its properties, and the method description. . M: is the implementation class.

2, the user's class is generally derived from NSObject, the class name is capitalized, the instance name is lowercase.

3. attributes : Defined within interface, modifier, @priavte, @protected (default), @public

4, method : Define the former "-" represents the instance method, "+" represents the class method.

5, The type is to add ().

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1.

Format of the header file:

#import <Foundation/Foundation.h>

@interface Myclass:nsobject

{
int numerator;
int denominator;
}
-(void) print;
-(void) Setnumberator: (int) n;
-(void) Setdenominator: (int) D;
@end

The format implemented by the class:

#import "Myclass.h"

@implementation MyClass

-(void) print
{
NSLog (@ "Hello zwh!");
NSLog (@ "%i/%i", numerator,denominator);

}
-(void) Setnumberator: (int) n
{
Numerator = n;

}
-(void) Setdenominator: (int) d
{
denominator = D;

}
@end

Object-c-Definition of class