#import <Foundation/Foundation.h>

@interface Score : NSObject
{
    int _c;
    int _oc;
    int _total;//知道哪些成员变量是可读可写，总分平均是可读不可写  只有get。
    int _average;

}

- (void)setC:(int)c;
- (void)setOc:(int)oc;
- (int)total;
- (int)average;
- (int)oc;
- (int)c;

@end

@implementation  Score
- (void)setC:(int)c
{
    _c = c;
    _total = _c + _oc;
    _average = _total/2;
}
- (void)setOc:(int)oc
{
    _oc = oc;
    _total = _c + _oc;
    _average = _total/2;
}
- (int)oc
{
  return _oc;
}
   
- (int)c
{
    return _c;
}

- (int)total

{
   
    return _total;
}

- (int)average
{
   
    return _average;
   
}



@end


int main()
{

    Score *s = [Score new];
    [s setC:54];
    [s setOc:30];
    [s total];
    [s average];
    NSLog(@"c语言的分数是%d",[s c]);
    NSLog(@"c语言的分数是%d",[s oc]);
    NSLog(@"总分数是%d",[s total]);
    NSLog(@"平均分数是%d",[s average]);
   
    return 0;
}

不能发到代码里面吗？这样看的好蛋疼啊！

把代码搞到代码框里面去

楼主要干什么》、？

怎么这么多:(