我是编程新手，我正在使用Xcode编写非常简单的动画代码。这是我的BuildingViewController.h:#import@interfaceBuildingViewController:UIViewController{}@property(nonatomic,retain)IBOutletUIButton*buttonTarget;-(IBAction)performRotate:(id)sender;//-(void)setValue:(id)valueforKey:(NSString*)performRotate;@end这是我的BuildingViewControll