/// <summary>

      /// 返回指定目录下所有文件信息

      /// </summary>

      /// <param name="strDirectory">目录字符串</param>

      /// <returns></returns>

    public List<FileInfo> GetAllFilesInDirectory(string strDirectory)

      {

          List<FileInfo> listFiles = new List<FileInfo>(); //保存所有的文件信息

          DirectoryInfo directory = new DirectoryInfo(strDirectory);

          DirectoryInfo[] directoryArray = directory.GetDirectories();

          FileInfo[] fileInfoArray = directory.GetFiles();

          if (fileInfoArray.Length > ) listFiles.AddRange(fileInfoArray);

          foreach (DirectoryInfo _directoryInfo in directoryArray)

          {

              DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);

              DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();

              FileInfo[] fileInfoArrayA = directoryA.GetFiles();

           if (fileInfoArrayA.Length > ) listFiles.AddRange(fileInfoArrayA);

            GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历

        }

        return listFiles;

      }