DataSet

 DataSet ds = CDBOperator.StasticTotalNeedleNumber("0000-00-00 00:00:00","3333-00-00 00:00:00");
           DataTableCollection table = ds.Tables;
           for (int i = 0; i < table.Count;i++ )
           {
               int col = table[i].Columns.Count;
               Console.WriteLine(table[i].Columns[0]);
               table[i].Columns[0].ColumnName= "aaaaaa";
               Console.WriteLine(table[i].Columns[0]);

               DataRowCollection row=table[i].Rows;
               for (int j = 0; j < row.Count; j++)
               {
                   Console.WriteLine(row[j][0]) ;
                   Console.WriteLine(row[j][1]);
               }
               Console.WriteLine();
           }