C# 获取本机IP地址

有时候软件操作的时候我们需要记录是从哪个机器上操作的，比如登录，或者一般涉及到金钱交易的时候，一般都会记录这个地址。

 /// <summary>
        /// 获得本机IP地址
        /// </summary>
        /// <param name="hostname"></param>
        /// <returns></returns>
        public static string DoGetHostEntry()
        {
            System.Net.IPHostEntry IpEntry = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName());
            string localhostipv4Address = "";

            for (int i = 0; i != IpEntry.AddressList.Length; i++)
            {
                if (!IpEntry.AddressList[i].IsIPv6LinkLocal)
                {
                    localhostipv4Address = IpEntry.AddressList[i].ToString();
                    break;
                }
            }

            return localhostipv4Address;
        }