FDTD(时域有限差分法)计算电磁场分布，可以在visual c++环境中运行。其中采用的格式是用C语言写的，适用于初学者。程序中ex与ey分别代表电场分量与磁场分量。-FDTD (finite difference time domain method) calculation of the electromagnetic field distribution in the visual c++ environment. Which format is used to write in C l