摘要：
//AppDelegate.h 头文件 #import <UIKit/UIKit.h>@class SwitchViewController;@interface AppDelegate : UIResponder <UIApplicationDelegate>{ UIApplication *mApp; //新建一个UIApplication对象}@property (strong, nonatomic) UIWindow *window;@property (nonatomic, retain) SwitchViewController *switchViewCon 阅读全文
