/// <summary>
/// DataTable數(shù)據(jù)導(dǎo)出Excel
/// </summary>
/// <param name="data"></param>
/// <param name="filepath"></param>
public static void DataTableExport(DataTable data, string filepath)
{
    try
    {
        //Workbook book = new Workbook("E:\\test.xlsx"); //打開工作簿
        Workbook book = new Workbook(); //創(chuàng)建工作簿
        Worksheet sheet = book.Worksheets[0]; //創(chuàng)建工作表
        Cells cells = sheet.Cells; //單元格
        //創(chuàng)建樣式
        Aspose.Cells.Style style = book.Styles[book.Styles.Add()];
        style.Borders[Aspose.Cells.BorderType.LeftBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //應(yīng)用邊界線 左邊界線  
        style.Borders[Aspose.Cells.BorderType.RightBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //應(yīng)用邊界線 右邊界線  
        style.Borders[Aspose.Cells.BorderType.TopBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //應(yīng)用邊界線 上邊界線  
        style.Borders[Aspose.Cells.BorderType.BottomBorder].LineStyle = Aspose.Cells.CellBorderType.Thin; //應(yīng)用邊界線 下邊界線   
        style.HorizontalAlignment = TextAlignmentType.Center; //單元格內(nèi)容的水平對齊方式文字居中
        style.Font.Name = "宋體"; //字體
        style1.Font.IsBold = true; //設(shè)置粗體
        style.Font.Size = 11; //設(shè)置字體大小
        //style.ForegroundColor = System.Drawing.Color.FromArgb(153, 204, 0); //背景色
        //style.Pattern = Aspose.Cells.BackgroundType.Solid; //背景樣式
        //style.IsTextWrapped = true; //單元格內(nèi)容自動換行
        
        //表格填充數(shù)據(jù)
        int Colnum = data.Columns.Count;//表格列數(shù) 
        int Rownum = data.Rows.Count;//表格行數(shù) 
        //生成行 列名行 
        for (int i = 0; i < Colnum; i++)
        {
            cells[0, i].PutValue(data.Columns[i].ColumnName); //添加表頭
            cells[0, i].SetStyle(style); //添加樣式
            //cells.SetColumnWidth(i, data.Columns[i].ColumnName.Length * 2 + 1.5); //自定義列寬
            //cells.SetRowHeight(0, 30); //自定義高
        }
        //生成數(shù)據(jù)行 
        for (int i = 0; i < Rownum; i++)
        {
            for (int k = 0; k < Colnum; k++)
            {
                cells[1 + i, k].PutValue(data.Rows[i][k].ToString()); //添加數(shù)據(jù)
                cells[1 + i, k].SetStyle(style); //添加樣式
            }
            cells[1 + i, 5].Formula = "=B" + (2 + i) + "+C" + (2 + i);//給單元格設(shè)置計算公式，計算班級總?cè)藬?shù)
        }
        sheet.AutoFitColumns(); //自適應(yīng)寬
        book.Save(filepath); //保存
        GC.Collect();
    }
    catch (Exception e)
    {
        logger.Error("生成excel出錯：" + e.Message);
    }
}

public void ToExcel(DataTable dt)
    {
        #region 3s  
        var FilePath = @"D:\ToExcel\";//產(chǎn)生Excel文件路徑
        DeleteFile(FilePath);
        //創(chuàng)建全新的Workbook 
        var workbook = new HSSFWorkbook();//一個sheet最多65536行
        var count = 0;
        for (double i = 0; i < Convert.ToDouble(dt.Rows.Count) / Convert.ToDouble(65534); i++)//每個Excel文件的一個頁簽只能存放65536行數(shù)據(jù)
        {
            var row_index = 0;
            //創(chuàng)建Sheet
            workbook.CreateSheet("Sheet" + i);
            //根據(jù)Sheet名字獲得Sheet對象  
            var sheet = workbook.GetSheet("Sheet" + i);
            IRow row;
            row = sheet.CreateRow(row_index);

            //寫入標(biāo)題
            for (int j = 0; j < dt.Columns.Count; j++)
            {
                row.CreateCell(j).SetCellValue(dt.Columns[j].Caption.ToString());
            }
            row = sheet.CreateRow(++row_index);

            //寫入數(shù)據(jù)
            for (int j = 0; j < (dt.Rows.Count - count > 65534 ? 65534 : dt.Rows.Count - count); j++)
            {
                var r = dt.Rows[j + count];
                for (int k = 0; k <dt.Columns.Count; k++)
                {
                    row.CreateCell(k).SetCellValue(r[k].ToString());

                    //如果是數(shù)字,判斷是否需要轉(zhuǎn)換為數(shù)字
                    //if (IsNumeric(r[k].ToString()))
                    //{
                    //    row.CreateCell(k).SetCellValue(Convert.ToDouble(r[k].ToString()));
                    //}
                    //else
                    //{
                    //    row.CreateCell(k).SetCellValue(r[k].ToString());
                    //}
                }

                row = sheet.CreateRow(++row_index);
            }
            count += row_index - 2;
        }
        //保存Workbook方式一： 以文件形式保存到服務(wù)器中（每次導(dǎo)出都會生成一個文件，慎重使用）
        var FileName = DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";

        var sw = File.Create(FilePath + FileName);
        workbook.Write(sw);
        sw.Close();
        var EC = new ExcelConverter();
        EC.WebopenExcel(Response, FilePath + FileName);
        #endregion
    }