C# 获取本机IP

private string GetIPAddress()
{
    IPAddress[] AddressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;
    string ipstr = "";
    for(int i = 0; i < AddressList.Length; i++)
    {
        IPAddress ip = AddressList[i];
        if (ip.AddressFamily == AddressFamily.InterNetwork)
        {
            ipstr = ip.ToString();
            break;
        }
    }
    return ipstr;
}