列出目录+子目录中的所有文件和目录

我想列出目录中包含的每个文件和目录以及该目录的子目录。如果我选择C：\作为目录，则程序将获取其有权访问的硬盘驱动器上每个文件和文件夹的每个名称。

列表可能看起来像

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);

*.*匹配文件的模式在哪里

如果还需要目录，则可以这样：

 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();
 }

Directory.GetFileSystemEntries在.NET 4.0+中存在，并返回文件和目录。这样称呼它：

string[] entries = Directory.GetFileSystemEntries(path, "*", SearchOption.AllDirectories);

请注意，它无法应付列出您无权访问的子目录的内容的尝试（UnauthorizedAccessException），但这可能足以满足您的需求。

使用GetDirectories和GetFiles方法获取文件夹和文件。

也可以使用来获取子文件夹中的文件夹和文件。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);
    }
}

恐怕该GetFiles方法返回文件列表，但不返回目录。问题中的列表提示我结果也应包括文件夹。如果您想了解更多自定义列表，您可以尝试调用GetFiles和GetDirectories递归。试试这个：

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);
}

提示：如果需要检查任何特定属性，则可以使用FileInfo和DirectoryInfo类。

您可以使用FindFirstFile返回一个句柄，然后递归地校准一个调用FindNextFile的函数。这是一个很好的方法，因为所引用的结构将充满各种数据，例如AlternativeName，lastTmeCreated，modified，attributes等

但是，在使用.net框架时，您将不得不进入非托管区域。

带有max lvl的某些改进版本可以在目录中找到，并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

该函数的输出（由于lvl限制，不包括folder5的内容，并且不包括folder3的内容，因为它位于excludeFolders数组中）：

-folder1
  file1.txt
  -folder2
    file2.txt
    -folder5
  -folder3
  -folder4
    file4.txt
    file5.txt

如果您无权访问目录树中的子文件夹，则Directory.GetFiles停止并引发异常，从而导致接收字符串[]中的值为空。

在这里，看到这个答案 https://stackoverflow.com/a/38959208/6310707

它管理循环内的异常并继续工作，直到遍历整个文件夹为止。

逻辑和有序的方式：

using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;

namespace DirLister
{
class Program
{
    public static void Main(string[] args)
    {
        //with reflection I get the directory from where this program is running, thus listing all files from there and all subdirectories
        string[] st = FindFileDir(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location));
        using ( StreamWriter sw = new StreamWriter("listing.txt", false ) )
        {
            foreach(string s in st)
            {
                //I write what I found in a text file
                sw.WriteLine(s);
            }
        }
    }

    private static string[] FindFileDir(string beginpath)
    {
        List<string> findlist = new List<string>();

        /* I begin a recursion, following the order:
         * - Insert all the files in the current directory with the recursion
         * - Insert all subdirectories in the list and rebegin the recursion from there until the end
         */
        RecurseFind( beginpath, findlist );

        return findlist.ToArray();
    }

    private static void RecurseFind( string path, List<string> list )
    {
        string[] fl = Directory.GetFiles(path);
        string[] dl = Directory.GetDirectories(path);
        if ( fl.Length>0 || dl.Length>0 )
        {
            //I begin with the files, and store all of them in the list
            foreach(string s in fl)
                list.Add(s);
            //I then add the directory and recurse that directory, the process will repeat until there are no more files and directories to recurse
            foreach(string s in dl)
            {
                list.Add(s);
                RecurseFind(s, list);
            }
        }
    }
}
}

下面的例子最快（非并行）的方式列出目录树中的文件和子文件夹，以处理异常。使用Directory.EnumerateDirectories和SearchOption.AllDirectories枚举所有目录会更快，但是如果遇到UnauthorizedAccessException或PathTooLongException，则此方法将失败。

使用通用堆栈集合类型，该类型是后进先出（LIFO）堆栈，并且不使用递归。从https://msdn.microsoft.com/zh-cn/library/bb513869.aspx，您可以枚举所有子目录和文件并有效地处理这些异常。

    public class StackBasedIteration
{
    static void Main(string[] args)
    {
        // Specify the starting folder on the command line, or in 
        // Visual Studio in the Project > Properties > Debug pane.
        TraverseTree(args[0]);

        Console.WriteLine("Press any key");
        Console.ReadKey();
    }

    public static void TraverseTree(string root)
    {
        // Data structure to hold names of subfolders to be
        // examined for files.
        Stack<string> dirs = new Stack<string>(20);

        if (!System.IO.Directory.Exists(root))
        {
            throw new ArgumentException();
        }
        dirs.Push(root);

        while (dirs.Count > 0)
        {
            string currentDir = dirs.Pop();
            string[] subDirs;
            try
            {
                subDirs = System.IO.Directory.EnumerateDirectories(currentDir); //TopDirectoryOnly
            }
            // An UnauthorizedAccessException exception will be thrown if we do not have
            // discovery permission on a folder or file. It may or may not be acceptable 
            // to ignore the exception and continue enumerating the remaining files and 
            // folders. It is also possible (but unlikely) that a DirectoryNotFound exception 
            // will be raised. This will happen if currentDir has been deleted by
            // another application or thread after our call to Directory.Exists. The 
            // choice of which exceptions to catch depends entirely on the specific task 
            // you are intending to perform and also on how much you know with certainty 
            // about the systems on which this code will run.
            catch (UnauthorizedAccessException e)
            {                    
                Console.WriteLine(e.Message);
                continue;
            }
            catch (System.IO.DirectoryNotFoundException e)
            {
                Console.WriteLine(e.Message);
                continue;
            }

            string[] files = null;
            try
            {
                files = System.IO.Directory.EnumerateFiles(currentDir);
            }

            catch (UnauthorizedAccessException e)
            {

                Console.WriteLine(e.Message);
                continue;
            }

            catch (System.IO.DirectoryNotFoundException e)
            {
                Console.WriteLine(e.Message);
                continue;
            }
            // Perform the required action on each file here.
            // Modify this block to perform your required task.
            foreach (string file in files)
            {
                try
                {
                    // Perform whatever action is required in your scenario.
                    System.IO.FileInfo fi = new System.IO.FileInfo(file);
                    Console.WriteLine("{0}: {1}, {2}", fi.Name, fi.Length, fi.CreationTime);
                }
                catch (System.IO.FileNotFoundException e)
                {
                    // If file was deleted by a separate application
                    //  or thread since the call to TraverseTree()
                    // then just continue.
                    Console.WriteLine(e.Message);
                    continue;
                }
                catch (UnauthorizedAccessException e)
                {                    
                    Console.WriteLine(e.Message);
                    continue;
                }
            }

            // Push the subdirectories onto the stack for traversal.
            // This could also be done before handing the files.
            foreach (string str in subDirs)
                dirs.Push(str);
        }
    }
}

我将以下代码与具有2个按钮的窗体一起使用，一个用于退出，另一个用于启动。文件夹浏览器对话框和保存文件对话框。代码在下面列出，并且可以在我的系统Windows10（64）上使用：

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);
            }
        }
    }
}

using System.IO;
using System.Text;
string[] filePaths = Directory.GetFiles(@"path", "*.*", SearchOption.AllDirectories);

一点点简单而缓慢但可以工作！如果您根本不使用“ fixPath”给文件路径，这只是示例...。您可以搜索所需的正确文件类型，选择列表名称时出现了错误，因为“ temporaryFileList是搜索到的文件列表”因此，继续进行下去。...而“ errorList”就是不言而喻的

 static public void Search(string path, string fileType, List<string> temporaryFileList, List<string> errorList)
    {

        List<string> temporaryDirectories = new List<string>();

        //string fix = @"C:\Users\" + Environment.UserName + @"\";
        string fix = @"C:\";
        string folders = "";
        //Alap útvonal megadása 
        if (path.Length != 0)
        { folders = path; }
        else { path = fix; }

        int j = 0;
        int equals = 0;
        bool end = true;

        do
        {

            equals = j;
            int k = 0;

            try
            {

                int foldersNumber = 
                Directory.GetDirectories(folders).Count();
                int fileNumber = Directory.GetFiles(folders).Count();

                if ((foldersNumber != 0 || fileNumber != 0) && equals == j)
                {

                    for (int i = k; k < 
                    Directory.GetDirectories(folders).Length;)
                    {

             temporaryDirectories.Add(Directory.GetDirectories(folders)[k]);
                        k++;
                    }

                    if (temporaryDirectories.Count == j)
                    {
                        end = false;
                        break;
                    }
                    foreach (string files in Directory.GetFiles(folders))
                    {
                        if (files != string.Empty)
                        {
                            if (fileType.Length == 0)
                            {
                                temporaryDirectories.Add(files);
                            }
                            else
                            {

                                if (files.Contains(fileType))
                                {
                                    temporaryDirectories.Add(files);

                                }
                            }
                        }
                        else
                        {
                            break;
                        }
                    }

                }

                equals++;

                for (int i = j; i < temporaryDirectories.Count;)
                {
                    folders = temporaryDirectories[i];
                    j++;
                    break;
                }

            }
            catch (Exception ex)
            {
                errorList.Add(folders);

                for (int i = j; i < temporaryDirectories.Count;)
                {
                    folders = temporaryDirectories[i];
                    j++;
                    break;
                }
            }
        } while (end);
    }

创建字符串列表

    public static List<string> HTMLFiles = new List<string>();

 private void Form1_Load(object sender, EventArgs e)
        {

     HTMLFiles.AddRange(Directory.GetFiles(@"C:\DataBase", "*.txt"));
            foreach (var item in HTMLFiles)
            {
                MessageBox.Show(item);
            }

}

目录/ s / b 。> results.txt

/ s =子文件夹/ b =结果