附件是一个图像的环形缓冲类，利用它，可以高效的处理或显示图片，很优秀，我感觉利用它可以在屏幕上每秒画50张左右的图像。-The attachment is an image of the ring buffer class, take advantage of it, can be efficient processing or display pictures, very good, and I feel that it can draw about 50 images per second