C#聊天程序(群聊与个人聊) 可以在局域网内实现聊天，如在一台电脑上安装了服务器（项目内自带），就可以用客户端实现聊天了，供大家学习参考-C# chat program (group chat and personal chat) can be achieved in the local area network chat, as in a computer installed on the server (built within the project), you can chat wi