C#文件和文件夹操作

编辑器加载中.../1.文件夹创建、移动、删除--------- //创建文件夹 Directory.CreateDirectory(Server.MapPath("a")); Directory.CreateDirectory(Server.MapPath("b")); Directory.CreateDirectory(Server.MapPath("c")); //移动b到a Directory.Move(Server.MapPath("b"), Server.MapPath("a\\b")); //删除c Directory.Delete(Server.MapPath("c")); //2.文件创建、复制、移动、删除--------- //创建文件 //使用File.Create创建再复制/移动/删除时会提示：文件正由另一进程使用,因此该进程无法访问该文件 //改用 FileStream 获取 File.Create 返回的 System.IO.FileStream 再进行关闭就无此问题 FileStream fs; fs = File.Create(Server.MapPath("a.txt")); fs.Close(); fs = File.Create(Server.MapPath("b.txt")); fs.Close(); fs = File.Create(Server.MapPath("c.txt")); fs.Close(); //复制文件 File.Copy(Server.MapPath("a.txt"), Server.MapPath("a\\a.txt")); //移动文件 File.Move(Server.MapPath("b.txt"), Server.MapPath("a\\b.txt")); File.Move(Server.MapPath("c.txt"), Server.MapPath("a\\c.txt")); //删除文件 File.Delete(Server.MapPath("a.txt")); //3.遍历文件夹中的文件和子文件夹并显示其属性--------- if(Directory.Exists(Server.MapPath("a"))) { //所有子文件夹 foreach(string item in Directory.GetDirectories(Server.MapPath("a"))) { Response.Write("文件夹：" + item + "
"); DirectoryInfo directoryinfo = new DirectoryInfo(item); Response.Write("名称：" + directoryinfo.Name + "
"); Response.Write("路径：" + directoryinfo.FullName + "
"); Response.Write("创建时间：" + directoryinfo.CreationTime + "
"); Response.Write("上次访问时间：" + directoryinfo.LastAccessTime + "
"); Response.Write("上次修改时间：" + directoryinfo.LastWriteTime + "
"); Response.Write("父文件夹：" + directoryinfo.Parent + "
"); Response.Write("所在根目录：" + directoryinfo.Root + "
"); Response.Write("
"); } //所有子文件 foreach (string item in Directory.GetFiles(Server.MapPath("a"))) { Response.Write("文件：" + item + "
"); FileInfo fileinfo = new FileInfo(item); Response.Write("名称：" + fileinfo.Name + "
"); Response.Write("扩展名：" + fileinfo.Extension +"
"); Response.Write("路径：" + fileinfo.FullName +"
"); Response.Write("大小：" + fileinfo.Length +"
"); Response.Write("创建时间：" + fileinfo.CreationTime +"
"); Response.Write("上次访问时间：" + fileinfo.LastAccessTime +"
"); Response.Write("上次修改时间：" + fileinfo.LastWriteTime +"
"); Response.Write("所在文件夹：" + fileinfo.DirectoryName +"
"); Response.Write("文件属性：" + fileinfo.Attributes +"
"); Response.Write("
"); } } //4.文件读写--------- if (File.Exists(Server.MapPath("a\\a.txt"))) { StreamWriter streamwrite = new StreamWriter(Server.MapPath("a\\a.txt")); streamwrite.WriteLine("木子屋"); streamwrite.WriteLine("http://www.mzwu.com/"); streamwrite.Write("2008-04-13"); streamwrite.Close(); StreamReader streamreader = new StreamReader(Server.MapPath("a\\a.txt")); Response.Write(streamreader.ReadLine()); Response.Write(streamreader.ReadToEnd()); streamreader.Close(); }