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c#获取本机IP,机器名,然后是操作系统版本

            string hostname = System.Net.Dns.GetHostName();
            System.Net.IPHostEntry ipEntry = System.Net.Dns.GetHostEntry(hostname);
            dr["NodeIP"] = ipEntry.AddressList[0].ToString();
            dr["NodeName"] = hostname;
            dr["NodeOSDesc"] = System.Environment.OSVersion.VersionString;