iOS UINavigationController popToViewController用法

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

或

for (UIViewController *controller inself.navigationController.viewControllers) {

    if ([controller isKindOfClass:[你要跳转到的Controller class]]) {

        [self.navigationControllerpopToViewController:controller animated:YES];

    }

}