SendandReceiveSerial

代码说明：

  用Turbo C编写的一个串口操作小程序，能发送，接收信息；程序功能简单，过段时间再把经过修改后的版本传上来(using Turbo C serial prepared by a small operational procedures, send, receive information; Functional procedures simple, then over time, after revision line with the traditional version.)