code: public static void copyDirectories(File[] directories, File[] destinationDirectories) throws IOException {
          int length = Integer.min(directories.length, destinationDirectories.length);
          for (int i = 0; i < length; i++) {
              copyDirectory(directories[i], destinationDirectories[i]);
          }
      }
docs: 批量复制文件夹
  
  @param directories 文件夹数组
  @param destinationDirectories 目标文件夹数组，与文件夹一一对应
  
  @throws IOException 异常