我将名称作为键存储,并将值作为值存储到NSDictionary保存中NSUserDefaults.然后我想要取回按分数排序的键,但我似乎无法用数字排序它们,只能用字符串.例如,分数列表100,50,300,200,500给出了100,200,300,50,500.
可以这样做还是我需要以不同的方式解决这个问题?
NSString *defaultNames[] = {@"Matt", @"Terry",@"Jessica",@"Sean",nil};
NSNumber *defaultScores[] = {@"600", @"500",@"100",@"50", nil};
NSDictionary *newScoreDict = [NSDictionary dictionaryWithObjects:(id *)defaultScores forKeys:(id *)defaultNames count:7];
NSArray *currScores = [scoreDict keysSortedByValueUsingSelector:@selector(compare:)];
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