多人间文本通信

1）能够枚举网络上所有已连线的聊天对象（使用IP 和端口标识就可）

2）聊天时可以任意选择聊天对象的IP 和端口（端口可以内部确定），给其发

送信息；注意：发送的信息不要广播！

2）聊天时可以接收任意聊天对象给自己发送的信息。注意：不是发给自己的

信息不接收，不显示！

4）接收消息时要播放提示声音，声音可以自选；-Multi-human text communications 1) to enumerate all network connections chat object (using the IP and port ID can be) 2) can choose to chat Chat IP and port (port can be internal to determine), to send information　Note: Do not broadcast messages sent! 2) chat chat arbitrary object can receive messages sent to yourself. Note: It is not distributed to their own information does not accept, do not show! 4) to receive messages when the voice prompts to play, sound can be optional