Delphi:Delphi局域网发消息的源程序代码，输入消息正文、局域网内的机器名和署名就可发送了，请注意，必须保证局域网内能检测到这些机器名，否则程序可能出错。

-Delphi: Delphi LAN message s source code, enter the message text, machine name and signature on the LAN can be sent, please note that you must ensure that the LAN can detect these machine name, otherwise the program may be wrong.