[objc] NSInteger 를 NSMutableArray 에 추가하기

objc:

NSMutableArray *array = [[NSMutableArray alloc] init];
NSInteger num = 7;
NSNumber *number = [NSNumber numberWithInt:num];
[ar addObject:number];
NSLog(@"Array %@",array);

https://stackoverflow.com/questions/8600841/adding-nsinteger-object-to-nsmutablearray