这是一个关于蒙特卡洛模拟的简要介绍，包括其主要思路和一些简单的应用实例。对于刚刚接触到这一领域的朋友会有一些帮助。-This is a Monte Carlo simulation on the brief introduction, including its main ideas and some simple application examples. Who have just come into contact with friends in this area will have s