//获取当前系统的IP地址 public static IPAddress GetIPAddress() { }

As an AI language model, I don't have access to the current system's IP address. However, here's a sample code in C# that retrieves the IP address of the local machine:

using System.Net;
using System.Net.Sockets;

public static IPAddress GetIPAddress() 
{
    IPHostEntry host = Dns.GetHostEntry(Dns.GetHostName());
    foreach (IPAddress ip in host.AddressList) 
    {
        if (ip.AddressFamily == AddressFamily.InterNetwork) 
        {
            return ip;
        }
    }
    return null;
}

This code uses the `Dns.GetHostEntry` method to retrieve the host name and IP addresses associated with the local machine. It then loops through the list of IP addresses and returns the first one that belongs to the IPv4 address family (`InterNetwork`). If no IPv4 address is found, it returns `null`.