用VC++6编写的CRC校验小程序，有操作界面，可直接输入需要校验的十六进制数据-With VC++ 6 prepared CRC checksum applet, there are user interface, can be directly input hexadecimal checksum data

用MFC编写的数据包校验与常用校验算法（数据处理方法与串口通信用户层协议的编制）。编写的代码部分都有中文注释，对刚开始接触MFC的学习者来说是很好的资源！ -Prepared by MFC with the commonly used packet checksum checksum algorithm (data-processing methods and user layer protocol serial communication preparation). They are al