NPOI操作Excel

 1 for (int i = 0; i < employees.Length; i++)
 2             {
 3                 IRow row = sheet.CreateRow(i+1);
 4                 row.CreateCell(0, CellType.STRING).SetCellValue(employees[i].Name);
 5                 row.CreateCell(1, CellType.STRING).SetCellValue(employees[i].Number);
 6                 //日期
 7                 ICellStyle styledata = book.CreateCellStyle();
 8                 IDataFormat format = book.CreateDataFormat(); 
 9                 styledata.DataFormat = format.GetFormat("yyyy年m月d日");
10                 ICell cell = row.CreateCell(2, CellType.NUMERIC);
11                 cell.CellStyle = styledata;
12                 cell.SetCellValue(employees[i].InDate);
13                 //日期
14 
15             }