即使正确声明后也无法访问NSMutableArray对象
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我陷入了一个非常奇怪的问题，对我来说至少是无法解决问题。问题是我在接口中声明了两个nsMutableArrays
NSMutableArray *lastItemForFormula;
NSMutableArray *lastItemForExpression;
@property (nonatomic, retain) NSMutableArray *lastItemForFormula;
@property (nonatomic, retain) NSMutableArray *lastItemForExpression;
@synthesize lastItemForFormula;
@synthesize lastItemForExpression;
-(void)elementClicked:(id)sender {
UIButton *btnClicked=(UIButton*)sender;
NSString* formula=[label text];
NSString *stringToBeConcatenated=[elements objectAtIndex:btnClicked.tag];
formula=[formula stringByAppendingString:stringToBeConcatenated];
[lastItemForFormula addObject:[formula copy]]; //First
[label setText:formula];
stringToBeConcatenated=[elements objectAtIndex:btnClicked.tag+1];
if ([labelExpression.text length]==0) {
[lastItemForExpression addObject:[stringToBeConcatenated copy]]; //Second
[labelExpression setText:[lastItemForFormula objectAtIndex:[lastItemForFormula count]]];
}
else {
[lastItemForExpression addObject:[[NSString stringWithFormat:@\"%@+%@\",[labelExpression text], stringToBeConcatenated] copy]]; //Third
[labelExpression setText:[lastItemForFormula objectAtIndex:[lastItemForFormula count]]];
}
}
没有找到相关结果
已邀请:
1 个回复
吞睫素
然后确保释放您的dealloc中的数组。