private void button1_Click(object sender, EventArgs e)

         {

             List<Book> books = new List<Book>();

             //1.读取Excel文件

             using (FileStream fsReder = File.OpenRead("练习.xlsx"))

             {

                 //2.创建工作簿

                 IWorkbook wk = new XSSFWorkbook("练习.xlsx");

                 //IWorkbook wk=new XSSFWorkbook(fsReder);

                 //获取第一个工作表

                 ISheet sheet = wk.GetSheetAt();

                 //3.遍历每一行,行和列的索引都是从0开始

                 for (int i = ; i < sheet.LastRowNum; i++)

                 {

                     IRow row = sheet.GetRow(i);

                     //MessageBox.Show(row.GetCell(0).ToString());

                     //4.读取每一行的数据，加到对象中

                     books.Add(new Book()

                     {

                         Name = row.GetCell().ToString(),

                         One = row.GetCell().ToString(),

                         Two = row.GetCell().ToString(),

                         Three = row.GetCell().ToString(),

                         Four = row.GetCell().ToString(),

                         Five = row.GetCell().ToString(),

                         Six = row.GetCell().ToString(),

                     });

                 }

             }

             //5.绑定数据

             dgv.DataSource = books;

             dgv.AutoGenerateColumns = false;

             dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect;

             MessageBox.Show("操作完成");

         }

         private void button2_Click(object sender, EventArgs e)

         {

             List<Book> books = new List<Book>()

             {

                 new Book() {Name = "火影忍者",One  ="",Two = "",Three = "",Four = "",Five = "",Six = ""},

                 new Book() {Name = "海贼王",  One ="",Two = "",Three = "",Four = "",Five = "",Six = ""},

                 new Book() {Name = "死神",One  ="",Two = "",Three = "",Four = "",Five = "",Six = ""},

                 new Book() {Name = "游戏王",One  ="",Two = "",Three = "",Four = "",Five = "",Six = ""},

             };

             //1.创建工作簿

             using (FileStream fsWrite = File.OpenWrite("1.xlsx"))

             {

                 IWorkbook wk = new XSSFWorkbook();

                 //2.创建第一个工作表

                 ISheet sheet = wk.CreateSheet("第一张表");

                 //第一行设置标题

                 IRow rowHead = sheet.CreateRow();

                 rowHead.CreateCell().SetCellValue("图书名");

                 rowHead.CreateCell().SetCellValue("一月");

                 rowHead.CreateCell().SetCellValue("二月");

                 rowHead.CreateCell().SetCellValue("三月");

                 rowHead.CreateCell().SetCellValue("四月");

                 rowHead.CreateCell().SetCellValue("五月");

                 rowHead.CreateCell().SetCellValue("六月");

                 //3.在工作表的最后一行下，循环创建工作表的每一行，添加数据

                 for (int i = ; i < books.Count; i++)

                 {

                     IRow row = sheet.CreateRow(i);

                     row.CreateCell().SetCellValue(books[i].Name);

                     row.CreateCell().SetCellValue(books[i].One);

                     row.CreateCell().SetCellValue(books[i].Two);

                     row.CreateCell().SetCellValue(books[i].Three);

                     row.CreateCell().SetCellValue(books[i].Four);

                     row.CreateCell().SetCellValue(books[i].Five);

                     row.CreateCell().SetCellValue(books[i].Six);

                 }

                 wk.Write(fsWrite);

             }

             MessageBox.Show("操作完成");

         }