文件夹的移动复制

 /// <summary>
        ///     文件夹的移动复制
        /// </summary>
        /// <param name="fromDir"></param>
        /// <param name="toDir"></param>
        public static void CopyDir(string fromDir, string toDir)
        {
            if (!Directory.Exists(fromDir)) return;
            if (!Directory.Exists(toDir))
            {
                Directory.CreateDirectory(toDir);
            }
            string[] files = Directory.GetFiles(fromDir);
            foreach (string formFileName in files)
            {
                string fileName = Path.GetFileName(formFileName);
                if (fileName == null) continue;
                string toFileName = Path.Combine(toDir, fileName);
                File.Copy(formFileName, toFileName);
            }
            string[] fromDirs = Directory.GetDirectories(fromDir);
            foreach (string fromDirName in fromDirs)
            {
                string dirName = Path.GetFileName(fromDirName);
                if (dirName == null) continue;
                string toDirName = Path.Combine(toDir, dirName);
                CopyDir(fromDirName, toDirName);
            }
        }

        public static void MoveDir(string fromDir, string toDir)
        {
            if (!Directory.Exists(fromDir)) return;
            CopyDir(fromDir, toDir);
            Directory.Delete(fromDir, true);
        }