_window = [[UIWindow alloc] init];
_window.backgroundColor = [UIColor redColor];
HMOneViewController *vc = [[HMOneViewController alloc] init];
_window.rootViewController = vc;
[_window makeKeyAndVisible];
_window = [[UIWindow alloc] init];
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Text" bundle:nil];
UIViewController *vc = [sb instantiateInitialViewController];
_window.rootViewController = vc;
[_window makeKeyAndVisible];
_window = [[UIWindow alloc] init];
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Text" bundle:nil];
UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"vc1"];
_window.rootViewController = vc;
[_window makeKeyAndVisible];
注意:此處ID指的是Identity->”Storyboard ID”