元胞自动机(cellular automata, CA)是时间和空间都离散的动力学系统。时至今日，已经广泛应用于社会、经济、军事和科学研究等各个领域。本程序是基于元胞自动机的原理，利用matlab编程，复现了二维状态下“生命游戏”的原型，森林树，以及SIR传染病模型，以帮助正在入门学习元胞自动机的人们加深其原理的理解。(Cellular automata (CA) is a dynamic system with discrete time and space. Today, it has been widely used in social, economic, military and scientific research and other fields. This program is based on the principle of cellular automata, using MATLAB programming, reproduce the two-dimensional state of "life game" prototype, forest tree, and SIR epidemic model, in order to help people who are learning cellular automata to deepen their understanding of its principle)