/// <summary>
    /// 获取指定表中的数据，返回一个DataSet，重载1
    /// </summary>
    /// <param name="SqlOrder">一个完整的SQL语句</param>
    /// <returns>返回一个已填充了TableName中所有表数据的DataSet对象</returns>
    public DataSet GetData(string SqlOrder)
    {
        DataSet myDataSet = new DataSet();

        try
        {

            this.myCon.Open();
            OleDbDataAdapter myAdapter = new OleDbDataAdapter(SqlOrder, this.myCon);
            myAdapter.Fill(myDataSet);
            int i=myDataSet.Tables[0].Rows.Count;
        }
        catch
        {
            throw (new Exception("读取数据失败！！！"));
        }
        finally
        {
            this.myCon.Close();
        }
        return myDataSet;
    }