VC++编写的飞鸽传书的工程文件，完成用户登录，多人聊天，文件传输，以及聊天记录下载保存的功能.-This VC++ project can transfer files between server and clients,and it can allow you to chat with other clients,save the chat contents.

局域网聊天程序的实现主要为局域网内的计算机提供交流的平台。完成一个基于服务器和客户端的局域网通讯软件，类似于聊天室，可进行注册、登录、系统信息记录、聊天等功能。用户容易使用，便于管理。-LAN chat program implemented for the computer within the LAN to provide a platform for the exchange. Complete a LAN-based server and client communications so

java SE版的简单聊天室，实现了群聊，私聊，上传下载，查看聊天记录，修改密码等功能。(Java SE version of a simple chat room, has realized the group chat, private chat and upload download, view the chat logs, change passwords, and other functions.)