内部利用Python语言编写，使用QT Designer4.0 绘出界面，调用pyqt库进行信号与槽的连接，利用python的库计算时域512个点的数组的FFT并绘制时域频域图，512点可用python的集成软件ERIC生成，此程序推荐在LINUX环境下使用-Internal use Python language, using the QT Designer4.0 mapped interface, call pyqt library to connect signals and slots

linux下的c语言代码，调用linux的Ncurses图形库，实现用户登录界面，tab键实现焦点转移，输入帐号admin 密码123456则提示登录成功，linux下 make clean；make编译，./main执行-linux c language code, call the Ncurses linux graphics library that implements the user login screen, tab key to shift the focus to achiev