水平翻轉(zhuǎn)
view.transform = CGAffineTransformScale(imageView.transform, -1.0, 1.0);
豎直翻轉(zhuǎn)
view.transform = CGAffineTransformScale(imageView.transform, 1.0, -1.0);
水平翻轉(zhuǎn)
view.transform = CGAffineTransformScale(imageView.transform, -1.0, 1.0);
豎直翻轉(zhuǎn)
view.transform = CGAffineTransformScale(imageView.transform, 1.0, -1.0);