假设您有故事板，请转到故事板并给VC一个标识符（检查员），然后执行：

Assuming you have storyboard, go to storyboard and give your VC an identifier (inspector), then do:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"IDENTIFIER"];
[self.navigationController pushViewController:vc animated:YES];

假设你想要一个xib文件：

Assuming you have a xib file you want to do:

UIViewController *vc = [[UIViewController alloc] initWithNibName:@"NIBNAME" bundle:nil];
[self.navigationController pushViewController:vc animated:YES];

没有xib文件：

UIViewController *vc = [[UIViewController alloc] init];
[self.navigationController pushViewController:vc animated:YES];