the code can be accurately produce 1

代码说明：

本程序代码可以准确地生成1－500Hz波形文件，正弦波，方波等。具体功能，下载下来，自己运行一下就知道了-the code can be accurately produce 1-500Hz waveform, sine, square, etc.. Specific functions, downloads, running about themselves will know.