C#:文件、路径（Path

public class Path_File { public string AppPath { get { return AppDomain.CurrentDomain.BaseDirectory; } } public Path_File() { } /// <summary> /// 查找指定路径下的文件夹 /// </summary> /// <param name="parentDirPath">指定路径</param> /// <param name="findDir">文件夹</param> /// <param name="findDirPath">文件夹路径</param> /// <returns>是否找到</returns> public bool FindDirectory(string parentDirPath, string findDir, ref string findDirPath, bool isRecursion = true) { bool isFind = false; try { DirectoryInfo folder = new DirectoryInfo(parentDirPath.Trim()); //指定搜索文件夹 if (folder.Exists && !parentDirPath.Contains(findDir))//存在 文件夹 { DirectoryInfo[] listDirInfos = folder.GetDirectories();//取得给定文件夹下的文件夹组 if (listDirInfos != null) { foreach (DirectoryInfo dirInfo in listDirInfos)//遍历 { if (dirInfo.Name.ToLower() == findDir.Trim().ToLower()) { findDirPath = dirInfo.FullName; isFind = true; break; } } if (!isFind && isRecursion) //目录内未找到切递归子目录查找 { foreach (DirectoryInfo dirInfo in listDirInfos)//遍历 { string newParentDirPath = Path.Combine(parentDirPath, dirInfo.Name); isFind = FindDirectory(newParentDirPath, findDir, ref findDirPath, isRecursion); if (isFind) { break; } } } } } else { int count = parentDirPath.LastIndexOf(findDir) + findDir.Length; findDirPath = parentDirPath.Substring(0, count); isFind = true; } } catch (Exception ex) { throw new Exception(ex.Message); } return isFind; } /// <summary> /// 获取指定目录下的子目录名集 /// </summary> /// <param name="parentDirPath">指定目录</param> /// <returns>子目录名集</returns> public List<string> getChildDirectories(string parentDirPath,bool isFullName = false) { List<string> listDirs = new List<string>(); DirectoryInfo folder = new DirectoryInfo(parentDirPath.Trim()); //指定搜索文件夹 if (folder.Exists)//存在 文件夹 { DirectoryInfo[] listDirInfos = folder.GetDirectories();//取得给定文件夹下的文件夹组 if (listDirs != null) { foreach (DirectoryInfo dirInfo in listDirInfos)//遍历 { if (isFullName) { listDirs.Add(dirInfo.FullName); } else { listDirs.Add(dirInfo.Name); } } } } return listDirs; } /// <summary> /// 获取指定目录下的子文件名集 /// </summary> /// <param name="parentDirPath">指定目录</param> /// <returns>子目录名集</returns> public List<string> getChildFiles(string parentDirPath, bool isFullName = false) { List<string> listFiles = new List<string>(); DirectoryInfo folder = new DirectoryInfo(parentDirPath.Trim()); //指定搜索文件夹 if (folder.Exists)//存在 文件夹 { FileInfo[] listFileInfos = folder.GetFiles();//取得给定文件夹下的文件夹组 if (listFiles != null) { foreach (FileInfo fileInfo in listFileInfos)//遍历 { if (isFullName) { listFiles.Add(fileInfo.FullName); } else { listFiles.Add(fileInfo.Name); } } } } return listFiles; } /// <summary> /// 复制文件夹 /// </summary> /// <param name="sourcePath">源目录</param> /// <param name="targetPath">目的目录</param> public bool CopyFolder(string sourcePath, string targetPath) { bool isSuccess = true; try { DirectoryInfo sourceInfo = new DirectoryInfo(sourcePath); if (sourceInfo.Exists) //源目录存在 { DirectoryInfo targetInfo = new DirectoryInfo(targetPath); if (!targetInfo.Exists) { targetInfo.Create(); } FileInfo[] files = sourceInfo.GetFiles(); //拷贝文件 foreach (FileInfo file in files) { file.CopyTo(Path.Combine(targetPath, file.Name), true); } DirectoryInfo[] childDirInfos = sourceInfo.GetDirectories(); //拷贝目录 foreach (DirectoryInfo dirInfo in childDirInfos) { CopyFolder(Path.Combine(sourcePath, dirInfo.Name), Path.Combine(targetPath, dirInfo.Name)); } } } catch (Exception) { isSuccess = false; } return isSuccess; } /// <summary> /// 确认路径存在（不存在则创建路径） /// </summary> /// <param name="path"></param> /// <returns></returns> public bool ConfirmPathExist(string path) { bool isExist = true; try { DirectoryInfo folder = new DirectoryInfo(path.Trim()); if (!folder.Exists)//不存在 文件夹 { folder.Create(); } } catch(Exception ex) { isExist = false; } return isExist; } /// <summary> /// 删除指定文件 /// </summary> /// <param name="fFullName"></param> /// <returns></returns> public bool DeleteFile(string fFullName) { bool isSuccess = true; try { FileInfo fInfo = new FileInfo(fFullName); if (fInfo.Exists)//存在 文件 { fInfo.Delete(); } } catch (Exception ex) { isSuccess = false; } return isSuccess; } /// <summary> /// 删除指定文件夹 /// </summary> /// <param name="folderPath"></param> /// <returns></returns> public bool DeleteFolder(string folderPath) { bool isSuccess = true; try { DirectoryInfo dirInfo = new DirectoryInfo(folderPath); if (dirInfo.Exists)//存在 文件夹 { dirInfo.Delete(true); } } catch (Exception ex) { isSuccess = false; } return isSuccess; } /// <summary> /// 替换路径下文件名中的标识 /// </summary> /// <param name="filePath"></param> /// <param name="oldTag"></param> /// <param name="newTag"></param> /// <returns></returns> public bool ReplaceTagFromName(string filePath, string oldTag, string newTag,bool isIgnorCase = false) { bool isSuccess = true; try { DirectoryInfo dirInfo = new DirectoryInfo(filePath); if (!dirInfo.Exists) { dirInfo.Create(); } FileInfo[] fileInfos = dirInfo.GetFiles(); foreach (FileInfo fileInfo in fileInfos) { string name = Path.GetFileNameWithoutExtension(fileInfo.Name); if (isIgnorCase) { name = name.ToLower(); oldTag = oldTag.ToLower(); } string newName = name.Replace(oldTag, newTag); string newFileName = newName + fileInfo.Extension; string fullName = Path.Combine(filePath,newFileName); fileInfo.MoveTo(fullName); } } catch (Exception ex) { isSuccess = false; } return isSuccess; } /// <summary> /// 更级名称 /// </summary> /// <param name="fileFullName"></param> /// <param name="i"></param> /// <returns></returns> public string getUniqueName(string fileFullName, int i = 0) { string fileName = fileFullName; try { FileInfo fInfo = new FileInfo(fileFullName); if (fInfo.Exists) { string ext = fInfo.Extension; int length = fileFullName.LastIndexOf(ext); fileName = fInfo.FullName.Substring(0, length) + i + ext; //string fileNamePath = Path.GetDirectoryName(fileFullName); //string fileNameWithoutExt = Path.GetFileNameWithoutExtension(fileFullName); //仅获取文件名，不包含路径 //fileName = fileNameWithoutExt + i + ext; //fileName = Path.Combine(fileNamePath,fileName); fInfo = new FileInfo(fileName); if (fInfo.Exists) { i++; fileName = getUniqueName(fileFullName, i); } } } catch { } return fileName; } /// <summary> /// 更级名称 /// </summary> /// <param name="fileFullName"></param> /// <param name="i"></param> /// <returns></returns> public bool UpdateName(string fileFullName) { bool isSuccess = true; try { string newName = getUniqueName(fileFullName); FileInfo fInfo = new FileInfo(fileFullName); if (fInfo.Exists) { fInfo.MoveTo(newName); } } catch { isSuccess = false; } return isSuccess; } public bool SaveInfos(string fileFullName, Dictionary<string, string> booksInfo, string tag = "|") { bool isSuccess = true; try { FileInfo fInfo = new FileInfo(fileFullName); FileStream fStream = null; if (!fInfo.Exists) { fStream = fInfo.Create(); } else { fStream = fInfo.Open(FileMode.CreateNew,FileAccess.ReadWrite); } StreamWriter sWrite = new StreamWriter(fStream);//(fileFullName, true); foreach (string bookId in booksInfo.Keys) { string lineInfo = bookId + tag + booksInfo[bookId]; sWrite.WriteLine(lineInfo); sWrite.Flush(); } sWrite.Close(); } catch { isSuccess = false; } return isSuccess; } public bool AppendInfo(string fileFullName,string Info) { bool isSuccess = true; try { FileInfo fInfo = new FileInfo(fileFullName); FileStream fStream = null; if (!fInfo.Exists) { fStream = fInfo.Create(); } else { fStream = fInfo.Open(FileMode.Append, FileAccess.ReadWrite); } StreamWriter sWrite = new StreamWriter(fStream); sWrite.WriteLine(Info); sWrite.Flush(); sWrite.Close(); } catch { isSuccess = false; } return isSuccess; } } View Code

 

+ 去掉.

　　:string ext = Path.GetExtension(fileName.Trim()).Replace(".",string.Empty);

+文件名称是否包含标识字符串：

public bool isFileNameContainsFlags(string fileName,List<string> contentFlags) { bool isContain = false; if (contentFlags == null || contentFlags.Count == 0) { isContain = true; } else { foreach (string flag in contentFlags) { if (fileName.Contains(flag.Trim())) { isContain = true; break; } } } return isContain; } View Code

 +过滤特殊字符

/// <summary> /// 过滤掉非法字符和点字符 /// </summary> /// <param name="directoryName"></param> /// <returns></returns> public String DirectoryNameFilter(String directoryName) { string invalidChars = "\\/:*?\"<>|."; //自定义非法字符（比系统的多了个.） foreach (char c in invalidChars) { directoryName = directoryName.Replace(c.ToString(), string.Empty); } return directoryName; } /// <summary> /// 过滤掉非法字符 /// </summary> /// <param name="name"></param> /// <returns></returns> public String NameFilter(String name) { string invalidChars = "\\/:*?\"<>|"; //自定义非法字符（比系统的多了个.） foreach (char c in invalidChars) { name = name.Replace(c.ToString(), string.Empty); } return name; } View Code

 

+打开文件夹浏览器

/// <summary> /// 打开文件夹浏览器 /// </summary> /// <param name="dirPath"></param> private string ShowFolderDialog(string dirPath) { string forderPath = dirPath.Trim(); if (!string.IsNullOrEmpty(forderPath)) { this.fld_dlg.SelectedPath = forderPath; } DialogResult dlgResult = fld_dlg.ShowDialog(); if (dlgResult == DialogResult.OK) { forderPath = fld_dlg.SelectedPath; } return forderPath; } View Code

 +批量修改文件名

/// <summary> /// 修改文件名 /// </summary> /// <param name="baseDirPath">基路径</param> /// <param name="partName">修改文件名</param> /// <param name="changeType">类型(0：替换,1:+前面，2：+后面)</param> /// <param name="isRecursion">是递归</param> /// <returns></returns> public bool ChangeFilesName(string baseDirPath, string partName, int changeType, bool isRecursion) { bool isSuccess = true; try { this.ConfirmPathExist(baseDirPath); List<string> fileNames = this.getChildFiles(baseDirPath); switch(changeType) { case 0: int i = 0; foreach(string fName in fileNames) { string srcFullName = Path.Combine(baseDirPath,fName); FileInfo fInfo = new FileInfo(srcFullName); string dstFileName = partName + i + Path.GetExtension(fName); string dstFullName = Path.Combine(baseDirPath, dstFileName); fInfo.MoveTo(dstFullName); i++; } break; case 1: foreach(string fName in fileNames) { string srcFullName = Path.Combine(baseDirPath,fName); FileInfo fInfo = new FileInfo(srcFullName); string dstFileName = partName + fName; string dstFullName = Path.Combine(baseDirPath, dstFileName); fInfo.MoveTo(dstFullName); } break; case 2: foreach (string fName in fileNames) { string srcFullName = Path.Combine(baseDirPath, fName); FileInfo fInfo = new FileInfo(srcFullName); string dstFileName = Path.GetFileNameWithoutExtension(fName) + partName + Path.GetExtension(fName); string dstFullName = Path.Combine(baseDirPath, dstFileName); fInfo.MoveTo(dstFullName); } break; default: break; } if (isRecursion) { List<string> dirFullNames = getChildDirectories(baseDirPath, true); foreach(string dirFullName in dirFullNames) { ChangeFilesName(dirFullName, partName, changeType, isRecursion); } } } catch (Exception ex) { isSuccess = false; } return isSuccess; } View Code

 

 +删除、清空目录

private void DeleteDirector(string path) { if (!Directory.Exists(path)) return; string[] subdir = Directory.GetDirectories(path); foreach (string dir in subdir) DeleteDirector(dir); string[] files = Directory.GetFiles(path); foreach (string file in files) { File.Delete(file); } Directory.Delete(path); } /// <summary> /// 清空目录 /// </summary> /// <param name="path">目录全路径</param> private void ClearDirectory(string path) { if (!Directory.Exists(path)) return; string[] files = Directory.GetFiles(path); foreach (string file in files) { try { File.Delete(file); } catch (Exception e) { _logger.Info("删除文件失败: ", e); } } string[] dirs = Directory.GetDirectories(path); foreach (string dir in dirs) { try { ClearDirectory(dir); Directory.Delete(dir); } catch (Exception e) { _logger.Info("删除目录失败: ", e); } } } View Code

 

 

 

 

更多：http://www.cnblogs.com/shenchao/p/5431163.html

转载于:https://www.cnblogs.com/shenchao/p/5128218.html