这是一个局域网类似qq的在线windows聊天软件源代码，分为客户端和服务器，客户端可以看到在线用户，并进行会话，并对发送的消息进行了加密解密-This is a LAN QQ similar online windows chat software source code, is divided into client and server, the client can see online users, and conversation, and to send a message to