这是我用VC++编写的一个基于PC机的任意函数信号发生器的上位机程序，并附上了下位机程序。实践表明能产生幅度和频率可调的正弦波，方波，三角波等。-This is what I use VC++ to prepare a PC-based signal generator, arbitrary function of the host computer program, together with procedures for the next crew. Practice shows that