这是一个模拟2维电磁波传播的程序，采用FDTD法、PML截断边界，计算模型可自定义导入，输出为一定时间范围内的电场磁场值。对于应用和FDTD初学者学习都很有帮助。-This is a 2-dimensional electromagnetic wave propagation simulation program, using FDTD method, PML truncation boundary model can be customized to import and output to the electric field within a certain time magnetic field. FDTD for beginners to learn the application and are very helpful.