说明：  FDTD一维程序，可以帮助大家建立一维模型，并输入参数运行。比如传输线、同轴线及平面波的设置及模拟都可以采用这个程序解决问题，尤其是给出了边界的设置方法。
(FDTD a peacekeeping process, we can help build a dimensional model and input parameters operation. For example, transmission lines, coaxial line and plane wave configuration and simulation can make use of this procedure to solve the problem, especially given the boundary configuration.)