程序实现的主要功能是实验台与PC机之间的串行通信，其中包括异步，全双工串行数据收/发操作，工作方式为串行通信的方式二，8个数据位，1起始位，1个停止位，无奇偶校验，并且波特率为9600。库函数根据不同的实验台而不同。-The main function of the program between the experimental class with the PC serial communication, including asynchronous, full duplex serial data transmit/receive operation, works for serial communication, 8 data bits, 1 start bit, 1 stop bit, no parity, and baud rate of 9600. Library functions, depending on the laboratory bench.