石根华先生数值流型法计算程序代码，版权允许，可以修改和使用。-Mr. Shi Genhua numerical flow pattern method, program code, copyright permission, you can modify and use.

石根华教授根据他自己提出的DDA理论编写的程序，压缩包里包含C++源代码。(Professor Shi Genhua compiled the program according to his own DDA theory. The compression package contains C++ source code.)