此程序是用于测试Vi的接收，本程序通过不间断的向外发送数据，通过通讯口与电脑的串口连接，检测编写的vi程序是否正确。-This procedure is used to test the reception of Vi, the program sends data out through continuous through the serial communication port to connect the computer to detect whether the correct procedures for the preparation of the vi.