This file is about the FFT , .. asdasfa as fsf sdf sdf sdfsd fs fds

用于列出一个目录下的所有文件（附过滤器），另外提供FUNCTION可列出嵌套的多个目录下的文件，非常有用，对于列举文件系统-PHP code used for list file system directory, very useful for more than one dir files content list

自己开发的小程序，可以实现快速调用文件求解相干函数。-Develop their own program, you can achieve quick access to documents for solving the coherence function.