- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { if([userDefaults objectForKey:@"autoLogIn"] != nil && [userDefaults objectForKey:@"rand_code"] != nil) { UIStoryboard *board = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; //获取故事板中某个View UIViewController *next = [board instantiateViewControllerWithIdentifier:@"mainTabBar"]; [self.window setRootViewController:next]; [self.window makeKeyAndVisible]; }else{ UIStoryboard *board = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; //获取故事板中某个View UIViewController *next = [board instantiateViewControllerWithIdentifier:@"mainTabBar"]; [self.window setRootViewController:next]; [self.window makeKeyAndVisible]; } return YES;}