均匀介质各向同性二维弹性波数值模拟，采样cerjan边界条件 有公式及参考文献。带有速度模型以及雷克子波函数，解压后直接运行就可以。-The homogeneous medium isotropic two-dimensional elastic wave numerical simulation, formulas and references Sample cerjan boundary conditions. With the velocity model and the the Rick