计算时间序列双谱的三维图和二维图，用于研究非线性过程非常管用！-Bispectrum calculation of three-dimensional time series graph and two-dimensional maps, used to study the nonlinear process is very useful!

fortran给程序加个对话框，实现可视化界面。-fortran to the processes in a dialog box, to achieve visual interface.