public async Task <IActionResult> Create(string file)
        {
            var excel = new ExcelPackage(Request.Form.Files.First().OpenReadStream());

            for (var i = 2; i <= excel.Workbook.Worksheets[0].Dimension.End.Row; i++)
            {
                await _iSysDepartmentService.SaveAsync(null, new SysDepartment()
                {
                    Name     = excel.Workbook.Worksheets[0].Cells[i, 1].Value.ToString(),
                    SystemId = excel.Workbook.Worksheets[0].Cells[i, 2].Value.ToString(),
                    Remark   = excel.Workbook.Worksheets[0].Cells[i, 3].Value.ToString()
                });
            }

            await _unitOfWork.CommitAsync();

            TempData[AlertType.Alerts.Success] = "数据导入成功!";
            return(RedirectToAction("Index"));
        }