中文说明：电磁仿真软件FDTD和matlab联合优化的代码。主函数用的是fmincon非线性优化，通过将FDTD软件中的数据流交换进matlab来大大提高优化效率。同时还可以选择其它算法
English Description：
Electromagnetic simulation software FDTD and MATLAB joint optimization code. The main function is fmincon nonlinear optimization, and the optimization efficiency is greatly improved by exchanging the data stream of FDTD software into Matlab. At the same time, other algorithms can be selected