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 > 0) 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 > 0) listFiles.AddRange(fileInfoArrayA);  
            GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历  
        }  
        return listFiles;  
      }