老师我遇到困难了求助搞了一小时没搞出结果 - 黑马程序员技术交流社区

<div align="left"><div class="blockcode"><blockquote>#import<Foundation/Foundation.h>
@interface Score : NSObject
{
int _cScore;
int _ocScore;
int _zhongFenScore;
int _averageScore;
}
- (void)setCScore:(int)cScore;
- (int)cScore;
- (void)setOcScore:(int)ocScore;//这是第12行
- (int)ocScore;
- (int)zhongFenScore;
- (int)averageScore;
@end
@implementation Score //这是第19行
- (void)setCScore:(int)cScore
{
_cScore = cScore;
_zhongFenScore = _cScore + _ocScore;
_averageScore = _zhongFenScore/2;
}
- (int)cScore
{
return _cScore;
}
- (void)setOcScor:(int)ocScore
{
_ocScore = ocScore;
_zhongFenScore = _cScore + _ocScore;
_averageScore = _zhongFenScore/2;
}
- (int)ocScore
{
return _ocScore;
}
- (int)zhongFenScore
{
return _zhongFenScore;
}
- (int)averageScore
{
return _averageScore;
}
@end
int main()
{
Score *s = [Score new];
[s setCScore:90];
[s setOcScore:92];
int a = [s zhongFenScore];
//int b = [s averageScore ];
NSLog(@"总分:%d",a);
// NSLog(@"平均分：%d",b);
return 0;
}
系统报错我一直没找到那错了求助急急急！！！！
37-封装练习.m:19:17: warning: method definition for 'setOcScore:' not found
[-Wincomplete-implementation]
@implementation Score
^
37-封装练习.m:12:1: note: method 'setOcScore:' declared here
- (void)setOcScore:(int)ocScore;
^
1 warning generated.

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