objective-c - NSMutableArray addObject不影响计数吗？

谁能告诉我为什么即使我向其中添加对象，日志记录[self.giftees count]仍返回0？

标头:

#import <UIKit/UIKit.h>

@interface Test2AppDelegate : NSObject <UIApplicationDelegate>
{
    UIWindow *window;
    NSMutableArray *giftees;
}

@property (nonatomic, retain) UIWindow *window;
@property (nonatomic, retain) NSMutableArray *giftees;

@end

从didFinishLaunchingWithOptions调用:

- (void)bootstrapGiftees
{
    NSArray *gifteeNames = [NSArray arrayWithObjects:@"Jesse",,nil];

    for (NSString *gifteeName in gifteeNames)
    {
        GifteeModel *g = [[GifteeModel alloc] init];
        g.name = gifteeName;

        [self.giftees addObject:g];
        NSLog(@"giftees count = %d", [self.giftees count]);
        [g release];
}
}

最佳答案

是否已初始化“giftee”？如果为零，则[giftees count]也将返回0