是socket的功能包，里面用C++封装了绝大部分Unix下socket的功能。-The Feature Pack is a socket, which use C++ package under Unix most of the functions of socket.

纠错算法功能包,实现简单的crc算法计算-Feature Pack correction algorithm to achieve a simple algorithm to calculate the crc

MFC的小程序，可以帮助你深入理解MFC的机制 MFC small program that can help you further understand the mechanism of MFC-MFC small program that can help you further understand the mechanism of MFC