【摘 要】利用红外对射管检测人手的移动，经51 单片机处理后通过串口给电脑发送信号，并利用Authorware 制作一个 接收程序，从而播放古琴音阶和音乐，实现模拟古琴功能。-[Abstract] using infrared detection of the radio control the movement of manpower, with 51 single-chip processing to the computer through the serial port to sen