在mfc中采用UDP协议实现文件的点到点的传输，里边多线程编程以及文件传输的思路适合初学者学习-In mfc using UDP protocol in point to point file transfer, multi-threaded programming inside and file transfers of ideas for beginners to learn

这是UDP网络编程的一个小程序,实现了TCPIP模型中无连接的传输协议-This is a small program of UDP network programming, implement the TCPIP model connectionless transport protocol