- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    GuideViewController *myGuideVC = [[GuideViewController alloc]initWithNibName:@"GuideViewController" bundle:nil];

    ADViewController *myADVC = [[ADViewController alloc]initWithNibName:@"ADViewController" bundle:nil];

   [self.window addSubview:myADVC.view];

   [self.window addSubview:myGuideVC.view];   //用户在此页面点击确定，则会[self removeSuperView] ,展现 myADVC.view

[self.window makeKeyAndVisible]; return YES;
}