/// <summary>
    /// Excel操作類（引用程序集Aspose.Cells.dll）
    /// </summary>
    public class ExcelOperation
    {
        /// <summary>
        /// 讀取指定路徑的Excel文件為DataTable
        /// </summary>
        /// <param name="fileName">文件全路徑</param>
        /// <param name="firstRow">要開始讀取的第一行在Excel中的行索引（默認會以此行各列數據作為DataTable的列名）</param>
        /// <param name="firstColumn">要開始讀取的第一列在Excel中的列索引</param>
        /// <param name="invalidEndRowNumber">文件尾部無效行數目（該部分所有行數據將不會被讀取）</param>
        /// <returns>返回DataTable</returns>
        public static DataTable ReadExcel(string fileName, int firstRow, int firstColumn, int invalidEndRowNumber)
        {
            Cells cells;
            Workbook workbook = new Workbook(fileName);
            cells = workbook.Worksheets[0].Cells;
            if (cells == null)
            {
                return null;
            }

            DataTable dt = cells.ExportDataTable(firstRow, firstColumn, cells.MaxDataRow - invalidEndRowNumber, cells.MaxDataColumn);
            string realColumnName = string.Empty;
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                if (dt.Rows[0][i] == null || dt.Rows[0][i].ToString().Trim() == string.Empty)
                {
                    realColumnName += dt.Rows[1][i];
                    dt.Columns[i].ColumnName = realColumnName.Replace(" ", string.Empty);
                    realColumnName = realColumnName.TrimEnd(dt.Rows[1][i].ToString().ToCharArray()).Replace(" ", string.Empty);
                }
                else
                {
                    realColumnName = dt.Rows[0][i].ToString();
                    if ((i + 1) <= cells.MaxColumn - 1 && (dt.Rows[0][i + 1] == null || dt.Rows[0][i + 1].ToString().Trim() == string.Empty))
                    {
                        realColumnName += dt.Rows[1][i].ToString();
                        dt.Columns[i].ColumnName = realColumnName.Replace(" ", string.Empty);
                        realColumnName = realColumnName.Remove(realColumnName.Length - dt.Rows[1][i].ToString().Length - 1, dt.Rows[1][i].ToString().Length).Replace(" ", string.Empty);
                    }
                    else
                    {
                        dt.Columns[i].ColumnName = realColumnName.Replace(" ", string.Empty);
                    }
                }
            }

            return dt;
        }

        /// <summary>
        /// 將DataTable導出指定路徑的Excel文件
        /// </summary>
        /// <param name="dt">DataTable</param>
        /// <param name="tableName">Excel文件的表頭內容</param>
        /// <param name="path">文件保存的全路徑</param>
        public static void ExportExcel(DataTable dt, string headerText, string path)
        {
            Workbook workbook = new Workbook(); //工作簿 
            Worksheet sheet = workbook.Worksheets[0]; //工作表 
            Cells cells = sheet.Cells;//單元格 

            //為標題設置樣式     
            Style styleTitle = workbook.Styles[workbook.Styles.Add()];//新增樣式 
            styleTitle.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
            styleTitle.Font.Name = "宋體";//文字字體 
            styleTitle.Font.Size = 18;//文字大小 
            styleTitle.Font.IsBold = true;//粗體 

            //樣式2 
            Style style2 = workbook.Styles[workbook.Styles.Add()];//新增樣式 
            style2.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
            style2.Font.Name = "宋體";//文字字體 
            style2.Font.Size = 14;//文字大小 
            style2.Font.IsBold = true;//粗體 
            style2.IsTextWrapped = true;//單元格內容自動換行 
            style2.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin;
            style2.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
            style2.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin;
            style2.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;

            //樣式3 
            Style style3 = workbook.Styles[workbook.Styles.Add()];//新增樣式 
            style3.HorizontalAlignment = TextAlignmentType.Center;//文字居中 
            style3.Font.Name = "宋體";//文字字體 
            style3.Font.Size = 12;//文字大小 
            style3.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin;
            style3.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
            style3.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin;
            style3.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;

            int Colnum = dt.Columns.Count;//表格列數 
            int Rownum = dt.Rows.Count;//表格行數 

            //生成行1 標題行    
            cells.Merge(0, 0, 1, Colnum);//合并單元格 
            cells[0, 0].PutValue(headerText);//填寫內容 
            cells[0, 0].SetStyle(styleTitle);
            cells.SetRowHeight(0, 38);

            //生成行2 列名行 
            for (int i = 0; i < Colnum; i++)
            {
                cells[1, i].PutValue(dt.Columns[i].ColumnName);
                cells[1, i].SetStyle(style2);
                cells.SetRowHeight(1, 25);
            }

            //生成數據行 
            for (int i = 0; i < Rownum; i++)
            {
                for (int k = 0; k < Colnum; k++)
                {
                    cells[2 + i, k].PutValue(dt.Rows[i][k].ToString());
                    cells[2 + i, k].SetStyle(style3);
                }
                cells.SetRowHeight(2 + i, 24);
            }

            workbook.Save(path);
        }
    }