我在将字典添加到nsmutabledictionary时遇到了问题。谁能看出我做错了什么？@interfaceviewMap:UIViewController{NSMutableDictionary*onclickDic;}@property(nonatomic,retain)NSMutableDictionary*onclickDic;@end@implementationviewMap@synthesizeonclickDic;-(MKAnnotationView*)mapView:(MKMapView*)mapViewviewForAnnotation:(id)annotatio