UIStoryboard.h

#import 
#import 

NS_CLASS_AVAILABLE_IOS(5_0) @interface UIStoryboard : NSObject {
}

// 加载一个storyboard
+ (UIStoryboard *)storyboardWithName:(NSString *)name bundle:(NSBundle *)storyboardBundleOrNil;

// 从storyboard中加载箭头所指的控制器
- (id)instantiateInitialViewController;
// E通过一个标识从storyboard加载控制器
- (id)instantiateViewControllerWithIdentifier:(NSString *)identifier;

@end