navigationController pop的几种方法

一，popViewControllerAnimated

[self.navigationController popViewControllerAnimated:YES];

二，popToRootViewControllerAnimated

[self.navigationController popToRootViewControllerAnimated:YES];

三，popToViewController

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2]
      animated:YES];

或

//假如你要跳转到DeskViewController
for (UIViewController *temp in self.navigationController.viewControllers) {
            if ([temp isKindOfClass:[DeskViewController class]]) {
                [self.navigationController popToViewController:temp animated:YES];
            }
        }