C#中，这样为什么获取不了IP地址，求解答

private void button1_Click(object sender, EventArgs e)
{
Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

IPAddress ip = IPAddress.Any;

textBox1.Text = ip.ToString();//这里为何在文本框中，得到的IP地址是0.0.0.0，而不是真正使用的IP地址

IPEndPoint point = new IPEndPoint(ip, Convert.ToInt32(textPort.Text));
socketWatch.Bind(point);

textLog.AppendText(ip.ToString()+"监听成功:" + "\n");

socketWatch.Listen(10);
Thread th = new Thread(Listen);
th.IsBackground = true;
th.Start(socketWatch);
}

IPAddress ip = IPAddress.Any;

你给变量IP赋了值，但所赋的值IPAddress.Any就是0.0.0.0这个IP啊
所以你接下来的ip.ToString()肯定就是0.0.0.0了