该程序为地震波数值模拟程序，基于声波方程二阶有限差分格式，程序中参数已经进行了说明，对于初学地震波数值模拟的朋友很有帮助。该程序为matlab编制，可以直接进行成图，所得图形为波场快照(The program is a seismic wave numerical simulation program. Based on the second-order finite difference format of the acoustic wave equation, the parameters in the program have been explained, which is very helpful for the friends of the numerical simulation of the initial seismic wave. The program is compiled for matlab, and can be directly mapped, and the resulting graph is a wave field snapshot.)