// 一、根據StoryboardID(需要在Storyboard設置),通過ViewController所在的Storyboard來加載: UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"FicowVC"]; // 二、通過UIViewController對應的.xib文件加載: UIViewController *vc = [[UIViewController alloc] initWithNibName:@"FicowVC" bundle:nil]; // 三、直接加載UIViewController類: UIViewController *vc = [[UIViewController alloc] init]; /* 注意: loadNibNamed和initWithNibName需要加載的xib文件是不一樣的。 initWithNibName需要加載的xib文件的File Owner應改是需要加載的類, 而loadNibNamed需要加載的xib文件的File Owner為NSObject。 */