第02天OC语言(07):#pragmamark基本使用

一、概念

二、代码

#import <Foundation/Foundation.h>
#pragma mark 类
#pragma mark - 2.枪

@interface Gun : NSObject
{
@public
    int _bullet; // 子弹
}

- (void)shoot;
@end

@implementation Gun

- (void)shoot
{
    if (_bullet > 0)
    {
        _bullet--;
        NSLog(@"打了一枪 %i",_bullet);
    }
    else
    {
        NSLog(@"没有子弹了,请换弹夹");
    }
    
}

@end
#pragma mark - 1.士兵

@interface Soldier : NSObject
{
@public
    NSString *_name;
    double _height;
    double _weight;
}
- (void)fire:(Gun *)gun;
@end

@implementation Soldier

- (void)fire:(Gun *)g
{
    [g shoot];
}

@end



#pragma mark - 3.弹夹
#pragma mark - main函数
int main(int argc, const char * argv[])
{
    Soldier *s = [Soldier new];
    s->_name = @"lyh";
    s->_height = 1.71;
    s->_weight = 65.0;
    
    Gun *gp = [Gun new];
    gp->_bullet = 10;
    
    [s fire:gp]; // 地址
    [s fire:gp];
    [s fire:gp];
    [s fire:gp];
    [s fire:gp];
    [s fire:gp];
    
    return 0;
}