初中生可做兼職的網(wǎng)站,百度云盤資源,無錫大型網(wǎng)站設計公司,學室內設計要多久能學會操作文件和文件夾是程序開發(fā)中常用#xff0c;無論是C/S和B/S都會存在操作文件的需求#xff0c;比如上傳新聞圖片按日期創(chuàng)建文件夾#xff0c;用文本文件存儲用戶信息等。下面介紹28種文件操作的方法#xff0c;希望對大家的開發(fā)有所幫助1.創(chuàng)建文件夾//using System.IO;Di…操作文件和文件夾是程序開發(fā)中常用無論是C/S和B/S都會存在操作文件的需求比如上傳新聞圖片按日期創(chuàng)建文件夾用文本文件存儲用戶信息等。下面介紹28種文件操作的方法希望對大家的開發(fā)有所幫助1.創(chuàng)建文件夾//using System.IO;Directory.CreateDirectory(path);2.創(chuàng)建文件//using System.IO;File.Create(path);3.刪除文件//using System.IO;File.Delete(path);4.刪除文件夾//using System.IO;Directory.Delete(path);5.刪除一個目錄下所有的文件夾//using System.IO;foreach (string dirStr in Directory.GetDirectories(path)){ DirectoryInfo dir new DirectoryInfo(dirStr); ArrayList foldersnew ArrayList(); FileSystemInfo[] fileArr dir.GetFileSystemInfos();for (int i 0; i folders.Count; i) { FileInfo f folders[i] as FileInfo;if (f null) { DirectoryInfo d folders[i] as DirectoryInfo; d.Delete(); } }}6.清空文件夾//using System.IO;Directory.Delete(path,true);Directory.CreateDirectory(path);7.讀取文件//using System.IO;StreamReader s File.OpenText(path1);string str2 null;while ((str2 s.ReadLine()) ! null){ }s.Close();8.寫入文件//using System.IO;FileInfo f new FileInfo(str);StreamWriter w f.CreateText();w.WriteLine(ReadOnlySpan);w.Close();9.寫入隨機文件//using System.IO;byte[] dataArray new byte[100000];//new Random().NextBytes(dataArray);using(FileStream FileStream new FileStream(path, FileMode.Create)){// Write the data to the file, byte by byte.for(int i 0; i dataArray.Length; i){ FileStream.WriteByte(dataArray[i]); }// Set the stream position to the beginning of the file. FileStream.Seek(0, SeekOrigin.Begin);// Read and verify the data.for(int i 0; i FileStream.Length; i){if(dataArray[i] ! FileStream.ReadByte()){ //寫入數(shù)據(jù)錯誤return; } }//數(shù)據(jù)流FileStream.Name已驗證}10.讀取文件屬性//using System.IO;FileInfo f new FileInfo(path);//f.CreationTime,f.FullNameif((f.Attributes FileAttributes.ReadOnly) ! 0){ path2}else{ path3}11.寫入屬性//using System.IO;FileInfo f new FileInfo(path);//設置只讀f.Attributes myFile.Attributes | FileAttributes.ReadOnly;//設置可寫f.Attributes myFile.Attributes ~FileAttributes.ReadOnly; 12.枚舉一個文件夾中的所有文件夾//using System.IO;foreach (string path2 in Directory.GetDirectories(path)){ path3}13.復制文件夾string path (path2.LastIndexOf() path2.Length - 1) ? path2 : path2;string parent Path.GetDirectoryName(path);Directory.CreateDirectory(path Path.GetFileName(path));DirectoryInfo dir new DirectoryInfo((path.LastIndexOf() path.Length - 1) ? path1 : path1 );FileSystemInfo[] fileArr dir.GetFileSystemInfos();QueueFileSystemInfo Folders new QueueFileSystemInfo(dir.GetFileSystemInfos());while (Folders.Count0){ FileSystemInfo tmp Folders.Dequeue(); FileInfo f tmp as FileInfo;if (f null) { DirectoryInfo d tmp as DirectoryInfo; Directory.CreateDirectory(d.FullName.Replace((parent.LastIndexOf() parent.Length - 1) ? parent : parent , path));foreach (FileSystemInfo fi in d.GetFileSystemInfos()) { Folders.Enqueue(fi); } }else { f.CopyTo(f.FullName.Replace(parent, path)); }}14.復制目錄下所有的文件夾到另一個文件夾下DirectoryInfo d new DirectoryInfo(path);foreach (DirectoryInfo dirs in d.GetDirectories()){ QueueFileSystemInfo al new QueueFileSystemInfo(dirs.GetFileSystemInfos());while (al.Count 0) { FileSystemInfo temp al.Dequeue(); FileInfo file temp as FileInfo;if (file null) { DirectoryInfo directory temp as DirectoryInfo; Directory.CreateDirectory(path directory.Name);foreach (FileSystemInfo fsi in directory.GetFileSystemInfos()) al.Enqueue(fsi); }else File.Copy(file.FullName, path file.Name); }}15.移動文件夾string filename Path.GetFileName(path); string path(path2.LastIndexOf() path2.Length - 1) ? path2 : path2 ;if (Path.GetPathRoot(path) Path.GetPathRoot(path2)) Directory.Move(path, path filename);else { string parent Path.GetDirectoryName(path); Directory.CreateDirectory(path Path.GetFileName(path1)); DirectoryInfo dir new DirectoryInfo((path.LastIndexOf() path1.Length - 1) ? path1 : path1 ); FileSystemInfo[] fileArr dir.GetFileSystemInfos(); QueueFileSystemInfo Folders new QueueFileSystemInfo(dir.GetFileSystemInfos());while (Folders.Count 0) { FileSystemInfo tmp Folders.Dequeue(); FileInfo f tmp as FileInfo;if (f null) { DirectoryInfo d tmp as DirectoryInfo; DirectoryInfo dpath new DirectoryInfo(d.FullName.Replace((parent.LastIndexOf() parent.Length - 1) ? parent : parent , path)); dpath.Create();foreach (FileSystemInfo fi in d.GetFileSystemInfos()) { Folders.Enqueue(fi); } }else { f.MoveTo(f.FullName.Replace(parent, path)); } } Directory.Delete(path, true); }16.移動目錄下所有的文件夾到另一個目錄下string filename Path.GetFileName(path);if (Path.GetPathRoot(path) Path.GetPathRoot(path2))foreach (string dir in Directory.GetDirectories(path1)) Directory.Move(dir, Path.Combine(path2,filename));else {foreach (string dir2 in Directory.GetDirectories(path1)) { string parent Path.GetDirectoryName(dir2); Directory.CreateDirectory(Path.Combine(path2, Path.GetFileName(dir2))); string dir (dir2.LastIndexOf() dir2.Length - 1) ? dir2 : dir2 ; DirectoryInfo dirdir new DirectoryInfo(dir); FileSystemInfo[] fileArr dirdir.GetFileSystemInfos(); QueueFileSystemInfo Folders new QueueFileSystemInfo(dirdir.GetFileSystemInfos());while (Folders.Count 0) { FileSystemInfo tmp Folders.Dequeue(); FileInfo f tmp as FileInfo;if (f null) { DirectoryInfo d tmp as DirectoryInfo; DirectoryInfo dpath new DirectoryInfo(d.FullName.Replace((parent.LastIndexOf() parent.Length - 1) ? parent : parent , path2)); dpath.Create();foreach (FileSystemInfo fi in d.GetFileSystemInfos()) { Folders.Enqueue(fi); } }else { f.MoveTo(f.FullName.Replace(parent, path2)); } } dirdir.Delete(true); } }18.復制文件//using System.IO;File.Copy(path1,path2);19.復制一個文件夾下所有的文件到另一個目錄//using System.IO;foreach (string fileStr in Directory.GetFiles(path1)) File.Copy((path1.LastIndexOf() path1.Length - 1) ? path1 Path.GetFileName(fileStr): path1 Path.GetFileName(fileStr),(path2.LastIndexOf(\) path2.Length - 1) ? path2 Path.GetFileName(fileStr): path2 Path.GetFileName(fileStr));20.提取擴展名//using System.IO;string path2Path.GetExtension(path1);21.提取文件名//using System.IO;string path2Path.GetFileName(path1);22.提取文件路徑//using System.IO;string path2Path.GetDirectoryName(path1);23.替換擴展名//using System.IO;File.ChangeExtension(path1,path2);24.追加路徑//using System.IO;string path3Path.Combine(path1,path2);25.移動文件//using System.IO;File.Move(path1,path2file.getname(path1));26.移動一個文件夾下所有文件到另一個目錄foreach (string fileStr in Directory.GetFiles(path1)) File.Move((path1.LastIndexOf() path1.Length - 1) ? path1 Path.GetFileName(fileStr): path1 Path.GetFileName(fileStr),(path2.LastIndexOf(\) path2.Length - 1) ? path2 Path.GetFileName(fileStr): path2 Path.GetFileName(fileStr));27.指定目錄下搜索文件string fileNamepath1;string dirNamepath2; DirectoryInfo dircnew DirectoryInfo(dirName);foreach(FileInfo file in dirc.GetFiles()) {if(file.Name.IndexOf(fileName)-1)return file.FullName; }foreach(DirectoryInfo dir in dirc.GetDirectories()) { return GetFile(fileName,dir.FullName); }return找不到指定的文件; }28.獲得當前路徑string pathEnvironment.CurrentDirectory;你還有哪些文件操作的方法歡迎留言。版權聲明本文來源于網(wǎng)友收集或網(wǎng)友提供僅供學習交流之用如果有侵權請轉告版主或者留言本公眾號立即刪除。- EOF -技術群添加小編微信dotnet999公眾號dotnet講堂