ios – NSMutableArray属性初始化和更新

假设我有@L_874_1@@property是@L_874_1@NSMutablearray,它包含四个对象使用的分数.它们将初始化为零,然后在viewDidLoad和应用程序的整个操作期间进行更新.

出于某种原因,我无法理解需要做的事情,特别是在声明和初始化步骤中.

我相信这可以是私有财产.

@property (strong,nonatomiC) NSMutableArray *scores;

@synthesize scores = _scores;

然后在viewDidLoad我尝试这样的东西,但得到@L_874_1@错误.我想,我只需要语法方面的帮助.或者我遗漏了一些非常基本的东西.

self.scores = [[NSMutableArray alloc] initWithObjects:@0,@0,nil];

这是初始化它的合适方式吗？然后我如何将(NSnumber *)updateValue添加到第n个值？

编辑：我想我弄清楚了.

-(void)updatescoreForBase:(int)baseIndex byIncrement:(int)scoreAdjustmentamount
{
    int prevIoUsValue = [[self.scores objectATindex:baseIndex] intValue];
    int updatedValue = prevIoUsValue + scoreAdjustmentamount;
    [_scores replaceObjectATindex:baseIndex withObject:[NSnumber numberWithInt:updatedValue]];
}

有没有更好的方法呢？

_scores = [[NSMutableArray alloc] initWithObjects:@0,nil];

self.scores=[[NSMutableArray alloc]initWithObjects:@0,nil];

NSInteger nthValue=12;
[_scores insertObject:updateValue aTindex:nthValue];

NSInteger prevIoUsValue = [[_scores objectATindex:baseIndex] IntegerValue];
NSInteger updatedValue = prevIoUsValue + scoreAdjustmentamount;
[_scores replaceObjectATindex:baseIndex withObject:[NSnumber numberWithInt:updatedValue]];