C# 获取指定目录下所有文件信息

      /// <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;
      }