计算机并口通讯程序-computer parallel port communication procedures

用于多串口的数据发送、接收的小程序，程序中是两个串口，可以扩展到多个-For many serial data to send, receive a small program, the program is two serial ports, can be extended to multiple

串口编程：串口测试程序，可以测试各种复杂的串口指令，并且能存储和记录各种状态。可以很方便的用于工业控制机器串口通讯的测试。-Serial Programming: Serial testing procedures, test a variety of complex serial instructions, and can store and record the various states. Can be easily used for industrial control the mac