/// <summary>
    /// 遍歷獲取所有文件
    /// </summary>
    /// <param name="filePathByForeach"></param>
    /// <param name="result"></param>
    public static void ForeachFile(string filePathByForeach, ref string result)
    {
      try
      {
        DirectoryInfo theFolder = new DirectoryInfo(filePathByForeach);
        DirectoryInfo[] dirInfo = theFolder.GetDirectories();//獲取所在目錄的文件夾
        FileInfo[] file = theFolder.GetFiles();//獲取所在目錄的文件

        foreach (FileInfo fileItem in file) //遍歷文件
        {
          result += fileItem.DirectoryName + @"\" + fileItem.Name + "\n";
        }
        //遍歷文件夾
        foreach (DirectoryInfo NextFolder in dirInfo)
        {
          ForeachFile(NextFolder.FullName, ref result);
        }

      }
      catch (Exception)
      {
        throw;
      }

    }