ios UINavigationController如何连续返回两级pop

有A–> B –> C,正常返回上一界面

    [self.navigationController popViewControllerAnimated:YES];

可以如果由C直接返回A的话，就需要用下面的方法

NSInteger index=[[self.navigationController viewControllers]indexOfObject:self];    [self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:index-2]animated:YES];