实现rgb转yuv，用到了一个xtable表格类，我对这个类进行了修改，目前作为vc的专用表格类使用，添加了edit框，并对表格进行过美化-Realize rgb to yuv, used a form xtable category, I have modified this class, the current form as a special category vc use, add the edit box, and carried out landscaping forms