如何在嵌入导航控制器的视图控制器中防止autoRotation？

override var shouldAutorotate: Bool {
    return false
}

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return .portrait // 仅支持竖屏
}

override var shouldAutorotate: Bool {
    return true
}

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return .all // 允许所有旋转方向
}