用DELPHI编写的用FDTD+PML计算的二维、三维电磁波动态传输程序代码，可帮助初学者学习DELPHI编程和FDTD算法运用。(Written in DELPHI using FDTD+PML calculation of two-dimensional and three-dimensional electromagnetic wave dynamic transmission program code, can help beginners learn DELPHI programmin