本文利用蒙特卡罗方法模拟了单层生物组织中光的传输与分布情况 ,给出了生物组织中的光子数分布随着 g因子、层厚 d、吸收系数以及散射系数的变化而变化的关系 ,分析了其变化的原因 In this paper, we use the Monte Carlo method to simulate the transmission and distribution of light in a single layer of biological tissue, and give the relationship between the photon number distribution in biological tissue and the g factor, layer thickness d, absorption coefficient and scattering coefficient , Analyzed the reason of its change