本文实例讲述了C#进行文件读写、创建、复制、移动、删除的方法。分享给大家供大家参考。具体分析如下：

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 inDirectory.GetDirectories(Server.MapPath("a"))) { Response.Write("<b>文件夹：" + item +"</b><br/>"); DirectoryInfo directoryinfo = new DirectoryInfo(item); Response.Write("名称："+directoryinfo.Name +"<br/>"); Response.Write("路径："+directoryinfo.FullName +"<br/>"); Response.Write("创建时间："+directoryinfo.CreationTime +"<br/>"); Response.Write("上次访问时间："+directoryinfo.LastAccessTime+"<br/>"); Response.Write("上次修改时间："+directoryinfo.LastWriteTime+"<br/>"); Response.Write("父文件夹："+directoryinfo.Parent+"<br/>"); Response.Write("所在根目录："+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("名称：" + fileinfo.Name +"<br/>"); Response.Write("扩展名：" + fileinfo.Extension+"<br/>"); Response.Write("路径：" + fileinfo.FullName+"<br/>"); Response.Write("大小：" + fileinfo.Length+"<br/>"); Response.Write("创建时间：" + fileinfo.CreationTime+"<br/>"); Response.Write("上次访问时间：" + fileinfo.LastAccessTime+"<br/>"); Response.Write("上次修改时间：" + fileinfo.LastWriteTime+"<br/>"); Response.Write("所在文件夹：" + fileinfo.DirectoryName+"<br/>"); Response.Write("文件属性：" + fileinfo.Attributes+"<br/>"); Response.Write("<br/>"); } }

4.文件读写

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.jb51.net/"); 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(); }

希望本文所述对大家的C#程序设计有所帮助。