using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using System;
using System.IO;

namespace NPOI.WriteExcel
{
    class Program
    {
        /*NPOI.DLL：NPOI 核心函式庫。
        NPOI.DDF.DLL：NPOI 繪圖區讀寫函式庫。
        NPOI.HPSF.DLL：NPOI 文件摘要資訊讀寫函式庫。
        NPOI.HSSF.DLL：NPOI Excel BIFF 檔案讀寫函式庫。
        NPOI.Util.DLL：NPOI 工具函式庫。
        NPOI.POIFS.DLL：NPOI OLE 格式存取函式庫。
        ICSharpCode.SharpZipLib.DLL：檔案壓縮函式庫。
         */
        static void Main(string[] args)
        {
            new Program().CreateExcel();
            new Program().InsertContext();
        }

        /// <summary>
        /// 创建Excel
        /// </summary>
        private void CreateExcel()
        {

            HSSFWorkbook workbook = new HSSFWorkbook();
            FileStream filestream = new FileStream(AppDomain.CurrentDomain.BaseDirectory+DateTime.Now.ToString("yyyyMMddHHmmss")+".xls",FileMode.Create);

            // 新增試算表。
            workbook.CreateSheet("試算表 A");
            workbook.CreateSheet("試算表 B");
            workbook.CreateSheet("試算表 C");

            workbook.Write(filestream);
            workbook.Close();

            filestream.Close();
            filestream.Dispose();
        }

        /// <summary>
        /// 像Excel中添加内容
        /// </summary>
        private void InsertContext()
        {
            HSSFWorkbook workbook = new HSSFWorkbook();
            FileStream filestream = new FileStream(AppDomain.CurrentDomain.BaseDirectory + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls", FileMode.Create);

            // 新增試算表。
            ISheet sheet1 = workbook.CreateSheet("試算表 A");
            ISheet sheet2 = workbook.CreateSheet("試算表 B");
            ISheet sheet3 = workbook.CreateSheet("試算表 C");

            //依次创建行和列
            ; i < ; i++)
            {
                IRow row1 = sheet1.CreateRow(i);
                IRow row2 = sheet2.CreateRow(i);
                IRow row3 = sheet3.CreateRow(i);

                ; j < ; j++)
                {
                    ICell cell1 = row1.CreateCell(j);
                    cell1.SetCellValue() + ) + "列");
                    ICell cell2 = row2.CreateCell(j);
                    cell2.SetCellValue() + ) + "列");
                    ICell cell3 = row3.CreateCell(j);
                    cell3.SetCellValue() + ) + "列");
                }
            }

            workbook.Write(filestream);
            workbook.Close();

            filestream.Close();
            filestream.Dispose();
        }
    }
}