蒙特卡洛光子模拟程序，可以设定介质的层数、折射率、厚度等，程序可以输出漫反射光、漫透射光、准直透射光的强度(Monte Carlo photon simulation program, which can set the number of layers, refractive index, thickness, etc. of the medium, can output the intensity of diffuse light, diffuse light and quasi direct light)