飞鸽传书 MFC。CUIT课程设计，代码拥有详细注释和详细的文档。 功能有：上线自动广播，广播群消息，点对点消息发送，文件发送。-IP Messenger MFC. Curriculum design, code with detailed comments and detailed documentation. Features are: automatic on-line, broadcast group messages, peer to peer messaging, file