How should I do to pop all or Specific Number viewsController?

[self.navigationController popViewControllerAnimated:YES];

This code is to pop only one viewController.

How should I do to pop all or Specific Number viewsCo开发者_如何学运维ntroller?

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You can use popToRootViewControllerAnimated: (to pop all) or popToViewController:animated: to pop to a specific view controller in the navigation stack.