using NPOI.HSSF.UserModel;using NPOI.SS.Formula.Functions;using NPOI.SS.UserModel;using System;using System.Collections.Generic;using System.Data;using System.IO;using System.Linq;using System.Reflection;using System.Text;using System.Threading.Tasks;namespace Farinfo.Ethics.Common{    public class IntroductionAndExport<T> where T : class,new()    {        //导出        public static void RenderToExcel(IEnumerable<T> list,string title)        {            IWorkbook workbook = new HSSFWorkbook();            ISheet sheet = workbook.CreateSheet();            DirectoryInfo imagesfile = new DirectoryInfo(("d:/"));            string strFileName = imagesfile.FullName.ToString();            int index = 0;            //填充表头            IRow dataRow = sheet.CreateRow(0);            foreach (PropertyInfo pi in list.FirstOrDefault().GetType().GetProperties())            {                dataRow.CreateCell(index).SetCellValue(pi.Name);                index++;            }            int id = 0;            foreach (T model in list)            {                id = id + 1;                IRow headerRow = sheet.CreateRow(id);                PropertyInfo[] proList = model.GetType().GetProperties();                for (int i = 0; i < proList.Count(); i++)                {                    var name = proList[i].GetValue(model, null);                    if (name == null)                        headerRow.CreateCell(i).SetCellValue("");                    else                        headerRow.CreateCell(i).SetCellValue(name.ToString());                }            }            //保存            using (MemoryStream ms = new MemoryStream())            {                workbook.Write(ms);                File.Create(strFileName + title + ".xls").Close();                using (FileStream fs = new FileStream(strFileName + DateTime.Now.Second + ".xls", FileMode.Create, FileAccess.Write))                {                    byte[] data = http://www.mamicode.com/ms.ToArray();"Mark")                        {                            if (int.TryParse(cell.StringCellValue, out num))                            {                                model.GetType().GetProperties()[j].SetValue(model, num, null);                            }                            else if (Guid.TryParse(cell.StringCellValue, out id))                            {                                model.GetType().GetProperties()[j].SetValue(model, id, null);                            }                            else if (DateTime.TryParse(cell.StringCellValue, out time))                            {                                model.GetType().GetProperties()[j].SetValue(model, time, null);                            }                            else if (cell.StringCellValue =http://www.mamicode.com/="")                            {                                model.GetType().GetProperties()[j].SetValue(model, null, null);                            }                            else                            {                                model.GetType().GetProperties()[j].SetValue(model, cell.StringCellValue, null);                            }                        }                    }                    list.Add(model);                }            }        }    }}