用的是vc＋＋编译的。有序抖动算法。这个代码是和同学一起做的。刚开始作，感觉很难，什么都不懂，现在感觉好多了。-the vc + + is compiled. Orderly dithering algorithm. This code is and classmates do. For the beginning, I feel very difficult, we do not understand anything, but now feel much better.