本程序在VC.NET中编译通过，实现了好友上线，下线UDP广播，及用XML实现消息传输，及文件传输功能。-procedures in the VC. Compiled by achieving a friend on the line, assembly line UDP broadcasting, and using XML messaging, and file transfer functions.

利用vc实现的局域网文件传输，共分为客户端和服务器端两部分，该部分是文件传输的服务器端，采用了TCP/UDP协议，可扩展到net网络传输！-use vc achieve LAN file transfer, is divided into client and server-side two, The file transfer is part of the server using the TCP / UDP protocol, which can be expanded to net net