使用Rogue初始化Nissan并调用方法drive()以确保打印输出

Question

我对Objective c完全陌生。我如何用Rogue初始化Nissan并调用drive()方法来确保它打印出来？

#import <Foundation/Foundation.h> 
#import "Car.h"  

int main(int argc, const char * argv[]) 
{ 
    @autoreleasepool 
    {
        Car *drive = [[Car alloc] init];         
        Car *Nissan =[[Car alloc] init];         

       [Nissan drive];                  
       Nissan.model=@"Rogue";
    }
}

Answer 1

对于基本实现，您可以遵循此结构。

Car.h

#import <Foundation/Foundation.h>

@interface Car : NSObject
@property (nonatomic) NSString *model;
- (void)drive;
@end

Car.m

#import "Car.h"

@implementation Car
- (void)drive {
    NSLog(@"Car model is: %@", self.model);
}
@end

main.m

#import <Foundation/Foundation.h>
#import "Car.h"

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Car *nissan = [[Car alloc]init];
        nissan.model = @"Rogue";
        [nissan drive];
    }
    return 0;
}