終於有了小小的進展，昨天一直沒有辦法利用 UIDeviceOrientationIsLandscape(UIDevice.current.orientation)
辨識裝置翻轉來變換圖片。最後才發現竟然只要在更換圖片後重新更新到 self.view 上就可以

 override func viewWillLayoutSubviews() {
                rotated()
        }
    
    func rotated() {
        if UIDeviceOrientationIsLandscape(UIDevice.current.orientation) {
            print("landscape")
            myImageView = UIImageView(image: UIImage(named: "03.jpg"))
            self.view.addSubview(myImageView)
            
        } else if UIDeviceOrientationIsPortrait(UIDevice.current.orientation) {
            print("portrait")
            myImageView = UIImageView(image: UIImage(named: "01.jpg"))
            self.view.addSubview(myImageView)
        }
    }

接下來就是把它跟 scrollView結合，還有解決 “UpsideDown” 沒有辦法識別的問題了!!