C# 文件的写入和删除

  1 class Program 
  2     {
  3         static void Main(string[] args)
  4         {
  5             EmployeeDAL DAL = new EmployeeDAL();
  6             List<Sys_Employee> list = DAL.GetAll().ToList(); 
  7             WriteTxt(list);
  8             //DeleDirFile();
  9         }
 10 
 11         #region   对文件的操作
 12 
 13         //写文件
 14         public static void WriteTxt(List<Sys_Employee> Emp)
 15         {
 16             string path = @"F:\CreateDirTxt";
 17 
 18             if (!Directory.Exists(path))
 19             {
 20                 Directory.CreateDirectory(path);
 21             }
 22             foreach (var emp in Emp)
 23             {
 24                 //创建文件流
 25                 FileStream Stream = new FileStream(@"F:\CreateDirTxt\" + emp.EmpName + "信息文本.txt", FileMode.Create);  
 26                 StreamWriter Writer = new StreamWriter(Stream);
 27                 //向流中写入内容
 28                 Writer.Write(string.Format("姓名是:{0} \n性别是:{1} \n地址是:{2}", emp.EmpName, (emp.EmpSex == 0) ? "男" : "女", emp.EmpAddress));
 29                 //清空缓存
 30                 Writer.Flush();
 31                 //关闭
 32                 Writer.Close();
 33                 Console.WriteLine("正在创建  " + emp.EmpName + "  的信息文本");
 34             }
 35             Console.WriteLine("创建完成 O(∩_∩)O");
 36             Console.ReadLine();
 37         } 
 38         //删文件
 39         public static void DeleDirFile()
 40         { 
 41             string path = @"F:\CreateDirTxt\";
 42             if (Directory.Exists(path))
 43             {
 44                 //获得文件夹数组
 45                 string[] Directorlenght = Directory.GetDirectories(path);
 46                 //获得文件数组
 47                 string[] filelength = Directory.GetFiles(path);
 48                 //遍历删除文件夹
 49                 foreach (string lst in Directorlenght)
 50                 {
 51                     Directory.Delete(lst);
 52                 }
 53                 //遍历删除文件
 54                 foreach (string lst in filelength)
 55                 {
 56                     int Index = lst.LastIndexOf("\\") + 1;
 57                     string EmpName = lst.Substring(Index, lst.Length - Index);
 58                     File.Delete(lst);
 59                     Console.WriteLine("文件 -"+EmpName+"- 删除成功");
 60                 }
 61                 Console.WriteLine("完成!  O(∩_∩)O");
 62             }
 63             else
 64             {
 65                 Console.WriteLine("文件或者文件夹不存在，请重新查看");
 66             }
 67             Console.ReadLine();
 68         }
 69         #endregion 
113     }