public ExecutionResult DataTableToTxt(DataTable vContent, string vOutputFilePath)

        {

            ExecutionResult sResult = new ExecutionResult();

            StringBuilder sTxtContent;

            try

            {

                if (File.Exists(vOutputFilePath))

                    File.Delete(vOutputFilePath);

                sTxtContent = new StringBuilder();

                //数据

                foreach (DataRow row in vContent.Rows)

                {

                    for (int i = ; i < vContent.Columns.Count; i++)

                    {

                        sTxtContent.Append(row[i].ToString().Trim());

                        sTxtContent.Append(i == vContent.Columns.Count -  ? "\r\n" : "\t");

                    }

                }

                File.WriteAllText(vOutputFilePath, sTxtContent.ToString(), Encoding.Unicode);

                sResult.Status = true;

            }

            catch (Exception ex)

            {

                sResult.Message = ex.Message;

                sResult.Status = false;

            }

            return sResult;

        }