C# 获取本机ip地址

   private string GetLocalIp()
        {
            string localIp;
            IPHostEntry host;
            host = Dns.GetHostEntry(Dns.GetHostName());         
            if (host.AddressList.Count() > 1)
            {
                //win7 ip
                 localIp = host.AddressList[1].ToString();
            }
            else
            {
                 //xp
                 localIp = host.AddressList[0].ToString();
            }
          
            return localIp;
            
        }