.Net常用技巧_目錄與檔案操作

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using System;using System.Collections.Generic;using System.Text;using System.IO;namespace MyTool{    public class FileOperator    {        /// <summary>        /// 返回指定目錄下所有檔案資訊        /// </summary>        /// <param name="strDirectory">目錄字元串</param>        /// <returns></returns>        public static List<FileInfo> GetAllFilesInDirectory(string strDirectory)        {            List<FileInfo> listFiles = new List<FileInfo>(); //儲存所有的檔案資訊            DirectoryInfo directory = new DirectoryInfo(strDirectory);            DirectoryInfo[] directoryArray = directory.GetDirectories();            FileInfo[] fileInfoArray = directory.GetFiles();            if (fileInfoArray.Length > 0) listFiles.AddRange(fileInfoArray);            foreach (DirectoryInfo _directoryInfo in directoryArray)            {                DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);                DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();                FileInfo[] fileInfoArrayA = directoryA.GetFiles();                if (fileInfoArrayA.Length > 0) listFiles.AddRange(fileInfoArrayA);                GetAllFilesInDirectory(_directoryInfo.FullName);//遞迴遍曆            }            return listFiles;        }        /// <summary>        /// 從一個目錄將其內容移動到另一目錄        /// </summary>        /// <param name="directorySource">來源目錄</param>        /// <param name="directoryTarget">目的目錄</param>        public void MoveFolderTo(string directorySource, string directoryTarget)        {            //檢查是否存在目的目錄            if (!Directory.Exists(directoryTarget))            {                Directory.CreateDirectory(directoryTarget);            }            //先來移動檔案            DirectoryInfo directoryInfo = new DirectoryInfo(directorySource);            FileInfo[] files = directoryInfo.GetFiles();            //移動所有檔案            foreach (FileInfo file in files)            {                //如果自身檔案在運行，不能直接覆蓋，需要重新命名之後再移動                if (File.Exists(Path.Combine(directoryTarget, file.Name)))                {                    if (File.Exists(Path.Combine(directoryTarget, file.Name + ".bak")))                    {                        File.Delete(Path.Combine(directoryTarget, file.Name + ".bak"));                    }                    File.Move(Path.Combine(directoryTarget, file.Name), Path.Combine(directoryTarget, file.Name + ".bak"));                }                file.MoveTo(Path.Combine(directoryTarget, file.Name));            }            //最後移動目錄            DirectoryInfo[] directoryInfoArray = directoryInfo.GetDirectories();            foreach (DirectoryInfo dir in directoryInfoArray)            {                MoveFolderTo(Path.Combine(directorySource, dir.Name), Path.Combine(directoryTarget, dir.Name));            }        }        /// <summary>        /// 從一個目錄將其內容複寫到另一目錄        /// </summary>        /// <param name="directorySource">來源目錄</param>        /// <param name="directoryTarget">目的目錄</param>        public static void CopyFolderTo(string directorySource, string directoryTarget)        {            //檢查是否存在目的目錄            if (!Directory.Exists(directoryTarget))            {                Directory.CreateDirectory(directoryTarget);            }            //先來複製檔案            DirectoryInfo directoryInfo = new DirectoryInfo(directorySource);            FileInfo[] files = directoryInfo.GetFiles();            //複製所有檔案            foreach (FileInfo file in files)            {                file.CopyTo(Path.Combine(directoryTarget, file.Name));            }            //最後複製目錄            DirectoryInfo[] directoryInfoArray = directoryInfo.GetDirectories();            foreach (DirectoryInfo dir in directoryInfoArray)            {                CopyFolderTo(Path.Combine(directorySource, dir.Name), Path.Combine(directoryTarget, dir.Name));            }        }    }}

註：自己用的，不一定符合別處的需求。