RS232串口通信的小软件，用C#写的，开发环境是VS2012，这个是我参考书本写的，基本的功能都具备，可用其他串口调试助手软件测试。-It`s a simple RS232 serial communication software and written in C#. The development environment is VS2012.It has fundamental functions and can tested by other serial port communicat