摘要：
1 #import <UIKit/UIKit.h> 2 3 @class ViewController; 4 5 @interface AppDelegate : UIResponder <UIApplicationDelegate> 6 7 @property (strong, nonatomic) UIWindow *window; 8 9 @property (strong, nonatomic) ViewController *viewController;10 11 12 @property (strong,nonatomic)UINavigationCont 阅读全文