关于二维ＦＤＴＤ程序，主要是在边界条件的设置上有困难，用ＵＰＭＬ编了一个程序，出了一些问题，电场的吸收很好，但对磁场的吸收不是很好-On the two-dimensional FDTD procedure, mainly in the establishment of boundary conditions have difficulties UPML made by a process, a number of issues, the absorption of the electr