对象作为方法的参数连续传递

实现功能: 士兵开枪 抢射击子弹

类: 枪类 人类

枪类:

名称:Gun

属性:型号(_size),子弹个数(_bulletCount)

行为:射击

人类:

名称:Soldier

属性:名字(_name)  life level

行为 开枪

#import <Foundation/Foundation.h>

@interface Gun : NSObject

{

    @public

    NSString *_size;

}

-(void)shoot;

@end

@interface Bullet : NSObject

{

    @public

    NSString *_size;

    int _bulletCount;

}

@end

@interface Soldier:NSObject

{

    @public

    NSString *_name;

}

-(void)fireByGun:(Gun *) gun and :(Bullet *) bullet;

@end

@implementation Bullet

@end

@implementation Gun

-(void)shoot{

    NSLog(@"%@正在射击!!!",_size);

}

@end

@implementation Soldier

-(void)fireByGun:(Gun *) gun and :(Bullet *) bullet{

    bullet->_bulletCount = bullet->_bulletCount - 1;

    if (bullet->_bulletCount>0) {

        [gun shoot];

        NSLog(@"子弹剩余:%d颗",bullet->_bulletCount);

    }else{

        NSLog(@"没有子弹了!!!!");

    }

}

@end

int main() {

    Soldier *soldier1 = [Soldier new];

    Gun *gun1 = [Gun new];

    Bullet *bullet = [Bullet new];

    bullet->_bulletCount = 5;

    gun1->_size = @"AK47";

    soldier1->_name = @"Star";

    [soldier1 fireByGun:gun1 and:bullet];

    [soldier1 fireByGun:gun1 and:bullet];

}

设计一个学生类

属性:

生日

姓名

用结构体作为类的实例变量

typedef struct {

    int year;

    int month;

    int day;

}myDate;

@interface Student:NSObject

{

    NSString *_name;

    myDate *_birthday;

}

@end

创建类并赋值:

Student *stu = [Student new];

stu->_birthday = (myDate){1983,12,5};

对象作为方法的参数连续传递

实现功能: 士兵开枪 抢射击子弹

类: 枪类 人类

枪类:

名称:Gun

属性:型号(_size),子弹个数(_bulletCount)

行为:射击

人类:

名称:Soldier

属性:名字(_name)  life level

行为 开枪

#import <Foundation/Foundation.h>

@interface Gun : NSObject

{

    @public

    NSString *_size;

}

-(void)shoot;

@end

@interface Bullet : NSObject

{

    @public

    NSString *_size;

    int _bulletCount;

}

@end

@interface Soldier:NSObject

{

    @public

    NSString *_name;

}

-(void)fireByGun:(Gun *) gun and :(Bullet *) bullet;

@end

@implementation Bullet

@end

@implementation Gun

-(void)shoot{

    NSLog(@"%@正在射击!!!",_size);

}

@end

@implementation Soldier

-(void)fireByGun:(Gun *) gun and :(Bullet *) bullet{

    bullet->_bulletCount = bullet->_bulletCount - 1;

    if (bullet->_bulletCount>0) {

        [gun shoot];

        NSLog(@"子弹剩余:%d颗",bullet->_bulletCount);

    }else{

        NSLog(@"没有子弹了!!!!");

    }

}

@end

int main() {

    Soldier *soldier1 = [Soldier new];

    Gun *gun1 = [Gun new];

    Bullet *bullet = [Bullet new];

    bullet->_bulletCount = 5;

    gun1->_size = @"AK47";

    soldier1->_name = @"Star";

    [soldier1 fireByGun:gun1 and:bullet];

    [soldier1 fireByGun:gun1 and:bullet];

}

设计一个学生类

属性:

生日

姓名

用结构体作为类的实例变量

typedef struct {

    int year;

    int month;

    int day;

}myDate;

@interface Student:NSObject

{

    NSString *_name;

    myDate *_birthday;

}

@end

创建类并赋值:

Student *stu = [Student new];

stu->_birthday = (myDate){1983,12,5};