这是一个简单的计算得分的客观方法。我得到F的所有4个分数的结果,尽管它不应该这样做。我究竟做错了什么?这个简单的方法有什么问题?
-(void) updateLetters:(int)score andLabel:(UILabel*)labelName {
if(score>=97)
labelName.text= @"A+";
else if(score>=94)
labelName.text= @"A";
else if(score>=90)
labelName.text= @"A-";
else if(score>=87)
labelName.text= @"B+";
else if(score>=84)
labelName.text= @"B";
else if(score>=80)
labelName.text= @"B-";
else if(score>=77)
labelName.text= @"C+";
else if(score>=74)
labelName.text= @"C";
else if(score>=70)
labelName.text= @"C-";
else if(score>=67)
labelName.text= @"D+";
else if(score>=64)
labelName.text= @"D";
else if(score>=60)
labelName.text= @"D-";
else [email protected]"F";
}
- (void)viewDidLoad {
[super viewDidLoad];
int r1score=appDelegate.correctAnswersCountR1;
int r2score=appDelegate.correctAnswersCountR2;
int r3score=appDelegate.correctAnswersCountR3;
int r4score=appDelegate.correctAnswersCountR4;
r1score=(r1score/17)*100;
r2score=(r2score/17)*100;
r3score=(r3score/17)*100;
r4score=(r4score/17)*100;
[self updateLetters: r1score andLabel: R1];
[self updateLetters: r2score andLabel: R2];
[self updateLetters: r3score andLabel: R3];
[self updateLetters: r4score andLabel: R4];
}
您是否展示了您实际传入该方法的数字?整数来自你的AppDelegate,也许它们没有被填充或传递正确。 –
appDelegate.correctAnswersCountR1的值的可能范围是什么?我怀疑,对于可比较的(或小于)17的值,你被整数除法r1score/17命中。事实上,如果r1score = 5,那么5/17 - > 0,如果r1score = 10,那么10/17 - > 0.因此0 * 100 - > 0,然后您的过程返回“F”。要解决它只是用17.0代替17.0 – viggio24