#import <Foundation/Foundation.h>

@interface Fraction : NSObject

-(void) print;
-(void) setNumerator :(int) n;
-(void) setDenominator:(int) d;
-(int) numberator;
-(int) denominator;

@end

#import "Fraction.h"

@implementation Fraction
{
    int numberator;
    int denominator;
}
-(void) print{
    NSLog(@"%i/%i",numberator,denominator);
}
-(void) setNumerator:(int)n{
    numberator = n;
}
-(void) setDenominator:(int)d{
    denominator = d;
}
-(int) numberator
{
    return numberator;
}
-(int) denominator
{
    return denominator;
}
@end
//----program 部分----
#import <Foundation/Foundation.h>
int main (int argc,const char * argv[])
{
    @autoreleasepool {
        //创建一个分数实例 alloc分配空间  init初始化
        myFraction = [[Fraction alloc] init];
        //myFraction = [myFraction init];
        
        
        //Fraction *fact = [[Fraction alloc] init];
        
        //设置分数为1／3
        [myFraction setNumerator:1];
        [myFraction setDenominator:3];
        
        //        [fact setDenominator:3];
        //        [fact setNumerator:7];
        
        //使用打印方法显示分数
        NSLog(@"The value of myFraction is: %i/%i",[myFraction numberator],[myFraction denominator]);
        //[myFraction print];
        //
        //        NSLog(@"Second fraction is:");
        //        [fact print];
    }
    return 0;
}