如何获取UIStoryboard里编辑的界面，如何pop回navigationController的某层界面

1.获取UIStoryboard 的实例

UIStoryboard *storyboard = [UIStoryboardstoryboardWithName:@"Main"bundle:nil];

    ViewController* vc=[storyboardinstantiateViewControllerWithIdentifier:@"SID"];

其中SID为ViewController 的ID

2.如果是拥有navigationController的跳转，pop回第几层View,则代码如下,下标[0]是首层NavigationController ，[1]则是第二层

    UIViewController *viewCtl =self.navigationController.viewControllers[0];

    

    [self.navigationControllerpopToViewController:viewCtlanimated:YES];