使用NOPI写入Excel基础代码

 using NPOI.XSSF.UserModel;
 using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace 学习NOPI
 {
     class Program
     {
         static void Main(string[] args)
         {
             //创建workbook工作簿
             XSSFWorkbook workbook = new XSSFWorkbook();
             //在workbook工作簿下创建两个工作表
             workbook.CreateSheet("SheetFirst");
             workbook.CreateSheet("SheetSecond");
             //获取工作表SheetFirst
             XSSFSheet worksheet = (XSSFSheet)workbook.GetSheet("SheetFirst");
             //在工作表下面创建10行
             for (int i = ; i < ; i++)
             {
                 worksheet.CreateRow(i);
             }
             //获取10行中的首行
             XSSFRow sheetrow = (XSSFRow)worksheet.GetRow();
             //申明一个长度10的单元格数组
             XSSFCell[] sheetcell = new XSSFCell[];

             for (int i = ; i < sheetcell.Length; i++)
             {   //创建10个单元格
                 sheetcell[i] = (XSSFCell)sheetrow.CreateCell(i);
                 //分别赋值
                 sheetcell[i].SetCellValue(i);
             }
             //写入流
             using (FileStream fs = new FileStream("TestNOPI.xlsx", FileMode.Create))
             {
                 workbook.Write(fs);
             }
             Console.WriteLine("OK");
             Console.ReadKey();

         }
     }
 }