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using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Data.OleDb;/// 
/// Class1 的摘要说明/// 
public class superConn{    private OleDbConnection cnn;    private OleDbCommand cmd;    private OleDbDataReader datar;    private int ch_number;    public superConn(string mdbFileName)    {        string _path = "~\\app_data\\" + mdbFileName;        string str_conn = "Provider=Microsoft.ACE.OLEDB.12.0;DATA SOURCE=" + HttpContext.Current.Server.MapPath(_path);        cnn = new OleDbConnection(str_conn);          }    public void open(){        cnn.Open();        }    public void close()    {        cnn.Close();    }           public OleDbDataReader GetDataReader(string _sql)    {        cmd = new OleDbCommand(_sql, cnn);        datar=cmd.ExecuteReader();        return datar;    }    public int GetChangeNumber(string _sqlchange)    {        cmd = new OleDbCommand(_sqlchange, cnn);        ch_number  = cmd.ExecuteNonQuery();        return ch_number ;    }}

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