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;
        }