能产生信号如正弦，方波，锯齿波等,并进行合成分解等功能-Can generate signals such as sine, square, sawtooth, etc., and the synthesis of functional decomposition

这是 一个界面 内完成 数字信号发生器、电子琴、电话机按键、信号合成的代码，基于MATLAB，相比 多界面 的有自己的特色，请参考！-This is a complete digital signal generator interface, keyboard, telephone keypad, the code signal synthesis, based on MATLAB, more than the interface has its own characteristics, ple