文件或文件夹按照时间进行排序

/// <summary>
        /// C#按文件夹名称排序（顺序）
        /// </summary>
        /// <param name="dirs">待排序文件夹数组</param>
        private void SortAsFolderName(ref DirectoryInfo[] dirs)
        {
            Array.Sort(dirs, delegate(DirectoryInfo x, DirectoryInfo y) { return y.Name.Length.CompareTo(x.Name.Length); });

        }

 DirectoryInfo dirs = new DirectoryInfo(appleFile.Path);

 DirectoryInfo[] arrDir = dirs.GetDirectories();

 SortAsFolderName(ref arrDir);