- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
Person *b;
{
Person *a = [[Person alloc] init];
b = a;
[self printCount:a];
}
}
- (void)printCount:(id)obj{
NSLog(@"retain count = %ld\n",CFGetRetainCount((__bridge CFTypeRef)(obj)));
}
//后经测试不是太准确
