学步园

自己写的一个备份文件夹得函数：

#region Back up the special folder
        /// <summary>
        /// Back up the special folder
        /// </summary>
        /// <param name="mainFolder"></param>
        public static void BackUpDirectory(string mainFolder,string targetFolder)
        {
            DirectoryInfo mainDir = new DirectoryInfo(mainFolder);
            //Get all files and Directorys in the special folder
            FileSystemInfo[] filesADirs = mainDir.GetFileSystemInfos();
            foreach (FileSystemInfo fileADir in filesADirs)
            {
                //back up sub directory
                if (fileADir.GetType().Name == "DirectoryInfo")
                    BackUpDirectory(fileADir.FullName, fileADir.FullName.Replace(mainFolder, targetFolder));
                else
                {
                    //back file
                    //file new name
                    string fileNewName = fileADir.FullName.Replace(mainFolder, targetFolder);
                    string parentFolder = new FileInfo(fileNewName).DirectoryName;
                    //create new file's parent folder if it does't exists
                    if (!Directory.Exists(parentFolder))
                        Directory.CreateDirectory(parentFolder);
                    File.Copy(fileADir.FullName, fileNewName);
                }
            }
        }
        #endregion