本文實例講述了C#進行文件讀寫、創建、復制、移動、刪除的方法。分享給大家供大家參考。具體分析如下：
1.文件夾創建、移動、刪除
//創建文件夾Directory.CreateDirectory(Server.MapPath("a"));Directory.CreateDirectory(Server.MapPath("b"));Directory.CreateDirectory(Server.MapPath("c"));//移動b到aDirectory.Move(Server.MapPath("b"), Server.MapPath("a//b"));//刪除cDirectory.Delete(Server.MapPath("c"));2.文件創建、復制、移動、刪除
//創建文件//使用File.Create創建再復制/移動/刪除時會提示：//文件正由另一進程使用,因此該進程無法訪問該文件//改用 FileStream 獲取 File.Create //返回的 System.IO.FileStream再進行關閉就無此問題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();//復制文件File.Copy(Server.MapPath("a.txt"),Server.MapPath("a//a.txt"));//移動文件File.Move(Server.MapPath("b.txt"),Server.MapPath("a//b.txt"));File.Move(Server.MapPath("c.txt"),Server.MapPath("a//c.txt"));//刪除文件File.Delete(Server.MapPath("a.txt"));3.遍歷文件夾中的文件和子文件夾并顯示其屬性
if(Directory.Exists(Server.MapPath("a"))){ //所有子文件夾 foreach(string item inDirectory.GetDirectories(Server.MapPath("a"))) { Response.Write("<b>文件夾：" + item +"</b><br/>"); DirectoryInfo directoryinfo = new DirectoryInfo(item); Response.Write("名稱："+directoryinfo.Name +"<br/>"); Response.Write("路徑："+directoryinfo.FullName +"<br/>"); Response.Write("創建時間："+directoryinfo.CreationTime +"<br/>"); Response.Write("上次訪問時間："+directoryinfo.LastAccessTime+"<br/>"); Response.Write("上次修改時間："+directoryinfo.LastWriteTime+"<br/>"); Response.Write("父文件夾："+directoryinfo.Parent+"<br/>"); Response.Write("所在根目錄："+directoryinfo.Root+"<br/>"); Response.Write("<br/>"); } //所有子文件 foreach (string item inDirectory.GetFiles(Server.MapPath("a"))) { Response.Write("<b>文件：" + item +"</b><br/>"); FileInfo fileinfo = new FileInfo(item); Response.Write("名稱：" + fileinfo.Name +"<br/>"); Response.Write("擴展名：" + fileinfo.Extension+"<br/>"); Response.Write("路徑：" + fileinfo.FullName+"<br/>"); Response.Write("大小：" + fileinfo.Length+"<br/>"); Response.Write("創建時間：" + fileinfo.CreationTime+"<br/>"); Response.Write("上次訪問時間：" + fileinfo.LastAccessTime+"<br/>"); Response.Write("上次修改時間：" + fileinfo.LastWriteTime+"<br/>"); Response.Write("所在文件夾：" + fileinfo.DirectoryName+"<br/>"); Response.Write("文件屬性：" + fileinfo.Attributes+"<br/>"); Response.Write("<br/>"); }}4.文件讀寫
if (File.Exists(Server.MapPath("a//a.txt"))){ StreamWriter streamwrite = newStreamWriter(Server.MapPath("a//a.txt")); streamwrite.WriteLine("木子屋"); streamwrite.WriteLine("http://www.49028c.com/"); streamwrite.Write("2008-04-13"); streamwrite.Close(); StreamReader streamreader = newStreamReader(Server.MapPath("a//a.txt")); Response.Write(streamreader.ReadLine()); Response.Write(streamreader.ReadToEnd()); streamreader.Close();}希望本文所述對大家的C#程序設計有所幫助。
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