我想要列出指定目录及其子目录中包含的每个文件和目录的名称。如果我选择C:\作为目标目录，程序将获取硬盘上所有有访问权限的文件和文件夹的名称。
列表可能如下所示
fd\1.txt fd\2.txt fd\a\ fd\b\ fd\a\1.txt fd\a\2.txt fd\a\a\ fd\a\b\ fd\b\1.txt fd\b\2.txt fd\b\a fd\b\b fd\a\a\1.txt fd\a\a\a\ fd\a\b\1.txt fd\a\b\a fd\b\a\1.txt fd\b\a\a\ fd\b\b\1.txt fd\b\b\a
string[] allfiles = Directory.GetFiles("path/to/dir", "*.*", SearchOption.AllDirectories);
其中*.*是匹配文件的模式。
如果还需要目录，可以按照以下方式进行：
foreach (var file in allfiles){
FileInfo info = new FileInfo(file);
// Do something with the Folder or just add them to a list via nameoflist.add();
}
Lsit<>类？GetFiles返回什么？那么还有被请求的目录名称呢？ - LuceroGetFiles 方法返回一个字符串数组。 - Guffastring[] allDir = System.IO.Directory.GetDirectories(@"D:\\Images\", "*.jpg", SearchOption.AllDirectories); - sairfanDirectory.GetFileSystemEntries 函数存在于 .NET 4.0+ 中，返回文件和目录。您可以像下面这样调用它：
string[] entries = Directory.GetFileSystemEntries(path, "*", SearchOption.AllDirectories);
public static void DirectorySearch(string dir)
{
try
{
foreach (string f in Directory.GetFiles(dir))
{
Console.WriteLine(Path.GetFileName(f));
}
foreach (string d in Directory.GetDirectories(dir))
{
Console.WriteLine(Path.GetFileName(d));
DirectorySearch(d);
}
}
catch (System.Exception ex)
{
Console.WriteLine(ex.Message);
}
}
Path提供了更可靠的方法。 - Gusdorpath.SubString(2) 来天真地删除驱动器号和冒号吗？如果目录是网络共享呢？我建议使用Path作为可靠的方法，因为它可以在这个领域提供大量的好处。在这种情况下，您可以编写filePath.Substring(Path.GetPathRoot(filePath).Length)。是的，这使用了Substring，因为它是最简洁的。 - Gusdor很抱歉，GetFiles 方法返回的是文件列表而不是目录。问题中的列表提示我结果应该包括文件夹。如果您想要更自定义的列表，可以尝试递归调用 GetFiles 和 GetDirectories。请尝试以下代码：
List<string> AllFiles = new List<string>();
void ParsePath(string path)
{
string[] SubDirs = Directory.GetDirectories(path);
AllFiles.AddRange(SubDirs);
AllFiles.AddRange(Directory.GetFiles(path));
foreach (string subdir in SubDirs)
ParsePath(subdir);
}
private static IEnumerable<string> TryEnumerate(Func<IEnumerable<string>> action)
{
try
{
return action.Invoke();
}
catch
{
//TODO logging
return Enumerable.Empty<string>();
}
}
private static IEnumerable<string> FindFilesAndDirectories(string dir, bool returnRelativePaths = false, string filePattern="*.*")
{
var searchStack = new Stack<string>();
searchStack.Push(dir);
var initialDirectory = new DirectoryInfo(dir).FullName;
var initialDirLength = initialDirectory.Length;
while (searchStack.Count > 0)
{
var currentDirectory = searchStack.Pop();
yield return (returnRelativePaths &&
string.Compare(currentDirectory, initialDirectory, StringComparison.OrdinalIgnoreCase) != 0) ?
currentDirectory.Substring(initialDirLength) : currentDirectory;
foreach (var file in TryEnumerate(() =>
Directory.EnumerateFiles(currentDirectory, filePattern)))
{
yield return returnRelativePaths ? file.Substring(initialDirLength) : file;
}
foreach (var directory in TryEnumerate(() =>
Directory.EnumerateDirectories(currentDirectory, filePattern)))
{
searchStack.Push(directory);
}
}
}
static void Main(string[] args)
{
foreach (var result in FindFilesAndDirectories(@"c:\", true))
{
Console.WriteLine(result);
}
}
有一些改进版本，最高级别可以在目录中向下移动，并且可以选择排除文件夹：
using System;
using System.IO;
class MainClass {
public static void Main (string[] args) {
var dir = @"C:\directory\to\print";
PrintDirectoryTree(dir, 2, new string[] {"folder3"});
}
public static void PrintDirectoryTree(string directory, int lvl, string[] excludedFolders = null, string lvlSeperator = "")
{
excludedFolders = excludedFolders ?? new string[0];
foreach (string f in Directory.GetFiles(directory))
{
Console.WriteLine(lvlSeperator+Path.GetFileName(f));
}
foreach (string d in Directory.GetDirectories(directory))
{
Console.WriteLine(lvlSeperator + "-" + Path.GetFileName(d));
if(lvl > 0 && Array.IndexOf(excludedFolders, Path.GetFileName(d)) < 0)
{
PrintDirectoryTree(d, lvl-1, excludedFolders, lvlSeperator+" ");
}
}
}
}
输入目录：
-folder1
file1.txt
-folder2
file2.txt
-folder5
file6.txt
-folder3
file3.txt
-folder4
file4.txt
file5.txt
函数的输出（由于级别限制，文件夹5的内容被排除在外；由于位于excludedFolders数组中，文件夹3的内容也被排除在外）：
-folder1
file1.txt
-folder2
file2.txt
-folder5
-folder3
-folder4
file4.txt
file5.txt
public static List<string> GetAllFilesInDirectory(string targetDirectory, List<string> list = null)
{
if (list == null)
{
list = new List<string>();
}
string[] fileEntries = Directory.GetFiles(targetDirectory);
foreach (string fileName in fileEntries)
{
list.Add(fileName);
}
string[] subdirectoryEntries = Directory.GetDirectories(targetDirectory);
foreach (string subdirectory in subdirectoryEntries)
GetAllFilesInDirectory(subdirectory, list);
return list;
}
我使用以下代码与一个有两个按钮的表单一起使用，一个用于退出，另一个用于启动。一个文件夹浏览对话框和一个保存文件对话框。下面列出了代码，并在我的Windows10（64）系统上运行：
using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Directory_List
{
public partial class Form1 : Form
{
public string MyPath = "";
public string MyFileName = "";
public string str = "";
public Form1()
{
InitializeComponent();
}
private void cmdQuit_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void cmdGetDirectory_Click(object sender, EventArgs e)
{
folderBrowserDialog1.ShowDialog();
MyPath = folderBrowserDialog1.SelectedPath;
saveFileDialog1.ShowDialog();
MyFileName = saveFileDialog1.FileName;
str = "Folder = " + MyPath + "\r\n\r\n\r\n";
DirectorySearch(MyPath);
var result = MessageBox.Show("Directory saved to Disk!", "", MessageBoxButtons.OK);
Application.Exit();
}
public void DirectorySearch(string dir)
{
try
{
foreach (string f in Directory.GetFiles(dir))
{
str = str + dir + "\\" + (Path.GetFileName(f)) + "\r\n";
}
foreach (string d in Directory.GetDirectories(dir, "*"))
{
DirectorySearch(d);
}
System.IO.File.WriteAllText(MyFileName, str);
}
catch (System.Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
}