这个程序是udp socket编程的范例，支持端口到端口的即时聊天，也可以是局域网内的广播通信 /////////////////////////////////// The MSocUdp sample is a minimal dialog box-based MFC application that demonstrates how to use the CAsyncSocket class to send and receive directed datagram or

微软提供的UDP局域网即时广播通讯程序源码-Microsoft provides real-time broadcasting of UDP LAN communication program source