UDP广播

不多说上代码

private Socket mSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);

/最重要的.IPEndPoint的理解，因为要广播，所以您的这个IPEndPoint是指在192.168.0 的网段内的所有机器的1032端口上广播
private System.Net.IPEndPoint ipEndPoiint = new System.Net.IPEndPoint(System.Net.IPAddress.Parse("192.168.0.255"), 1032);

mSocket.SendTo(mUdpBuffer, SocketFlags.Broadcast, ipEndPoiint);