zigz-zag扫描，广泛应用于傅里叶变换和图像的压缩处理，用C++写成，可以看看。-zigz-zag scanning is widely used in Fourier transform and image compression, using C++ languages, you can see.

openGL使用Visual C++ 图像的扫描算法-the openGL using Visual C++ image scanning algorithm