OC 复合 组装电脑

键盘类

#import <Foundation/Foundation.h>

@interface Keyboard : NSObject

@property(strong,nonatomic)NSString *brand;

@end

#import "Keyboard.h"

@implementation Keyboard

- (NSString *)description

{

return [NSString stringWithFormat:@"%@", _brand];

}

@end

鼠标类

#import <Foundation/Foundation.h>

@interface Mouse : NSObject

@property(strong,nonatomic)NSString *brand;

@end

#import "Mouse.h"

@implementation Mouse

- (NSString *)description

{

return [NSString stringWithFormat:@"%@", _brand];

}

@end

显示屏类

#import <Foundation/Foundation.h>

@interface Displayer : NSObject

@property(strong,nonatomic)NSString *brand;

@end

#import <Foundation/Foundation.h>

@interface Displayer : NSObject

@property(strong,nonatomic)NSString *brand;

@end

机箱类

#import <Foundation/Foundation.h>

@interface Engine : NSObject

@property(strong,nonatomic)NSString *brand;

@end

#import "Engine.h"

@implementation Engine

- (NSString *)description

{

return [NSString stringWithFormat:@"%@", _brand];

}

@end

电脑类

#import <Foundation/Foundation.h>

#import "Keyboard.h"

#import "Mouse.h"

#import "Displayer.h"

#import "Engine.h"

@interface Computer : NSObject

@property(strong,nonatomic)Mouse *mouse;

@property(strong,nonatomic)Keyboard *keyboard;

@property(strong,nonatomic)Displayer *displayer;

@property(strong,nonatomic)Engine *engline;

-(void)run;

@end

#import "Computer.h"

#import "Keyboard.h"

#import "Mouse.h"

#import "Displayer.h"

#import "Engine.h"

@implementation Computer

- (instancetype)init

{

self = [super init];

if (self) {

Mouse *mouse= [[Mouse alloc] init];

mouse.brand=@"BENQ";

self.mouse=mouse;

Keyboard *keyboard=[Keyboard new];

keyboard.brand=@"BENQ";

self.keyboard=keyboard;

Displayer *displayer=[Displayer new];

displayer.brand=@"SUMSUN";

self.displayer=displayer;

Engine *engline=[Engine new];

engline.brand=@"Mac mini";

self.engline=engline;

}

return self;

}

-(void)run

{

NSLog(@"%@",[_mouse description]);

NSLog(@"%@",[_keyboard description]);

NSLog(@"%@",[_displayer description]);

NSLog(@"%@",[_engline description]);

}

@end

main 函数

#import <Foundation/Foundation.h>

#import "Computer.h"

int main(int argc, const char * argv[]) {

@autoreleasepool {

Computer *computer=[[Computer alloc] init];

// Keyboard *keyboard=[[Keyboard alloc] init];

// Mouse *mouse=[[Mouse alloc] init];

// Engine *engline=[[Engine alloc] init];

// Displayer *displary=[[Displayer alloc] init];

//

// computer.mouse=mouse;

// computer.keyboard=keyboard;

// computer.engline=engline;

// computer.displayer=displary;

// mouse.brand=@"BENQ";

// keyboard.brand=@"BENQ";

// displary.brand=@"SUMSUN";

// engline.brand=@"Mac mini";

[computer run];

}

return 0;

}

运行结果