如何从确切的子目录获取文件

问题描述

我设法从根"文件夹子目录中获取文件，但是我也从这些子目录directory2中获取文件，我不想这样做.

I've managed to get files out of "root" folder subdirectories, but I also get files from these subdirectories directories2, which I don't want to.

示例:RootDirectory>Subdirectories (wanted files)>directories2 (unwanted files)

我使用了以下代码:

public void ReadDirectoryContent()
{
  var s1 = Directory.GetFiles(RootDirectory, "*", SearchOption.AllDirectories);
  {
  for (int i = 0; i <= s1.Length - 1; i++)
  FileInfo f = new FileInfo(s1[i]);
  . . . etc
  }
}

推荐答案

尝试一下:

var filesInDirectSubDirs = Directory.GetDirectories(RootDirectory)
    .SelectMany(d=>Directory.GetFiles(d));

foreach(var file in filesInDirectSubDirs)
{
    // Do something with the file
    var fi = new FileInfo(file);
    ProcessFile(fi);
}

这个想法是首先选择第一级子目录，然后使用 Enumerable.SelectMany 方法

The idea is to first select 1st level of subdirectories, then "aggregate" all files using Enumerable.SelectMany method

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