tboswell的替换证明版本(这是弹性的重复模式在文件路径)

public static void copyAll(string SourcePath , string DestinationPath )
{
   //Now Create all of the directories
   foreach (string dirPath in Directory.GetDirectories(SourcePath, "*", SearchOption.AllDirectories))
      Directory.CreateDirectory(Path.Combine(DestinationPath ,dirPath.Remove(0, SourcePath.Length ))  );

   //Copy all the files & Replaces any files with the same name
   foreach (string newPath in Directory.GetFiles(SourcePath, "*.*",  SearchOption.AllDirectories))
      File.Copy(newPath, Path.Combine(DestinationPath , newPath.Remove(0, SourcePath.Length)) , true);
    }

容易得多

private static void CopyFilesRecursively(string sourcePath, string targetPath)
{
    //Now Create all of the directories
    foreach (string dirPath in Directory.GetDirectories(sourcePath, "*", SearchOption.AllDirectories))
    {
        Directory.CreateDirectory(dirPath.Replace(sourcePath, targetPath));
    }

    //Copy all the files & Replaces any files with the same name
    foreach (string newPath in Directory.GetFiles(sourcePath, "*.*",SearchOption.AllDirectories))
    {
        File.Copy(newPath, newPath.Replace(sourcePath, targetPath), true);
    }
}

复制自MSDN:

using System;
using System.IO;

class CopyDir
{
    public static void Copy(string sourceDirectory, string targetDirectory)
    {
        DirectoryInfo diSource = new DirectoryInfo(sourceDirectory);
        DirectoryInfo diTarget = new DirectoryInfo(targetDirectory);

        CopyAll(diSource, diTarget);
    }

    public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
    {
        Directory.CreateDirectory(target.FullName);

        // Copy each file into the new directory.
        foreach (FileInfo fi in source.GetFiles())
        {
            Console.WriteLine(@"Copying {0}\{1}", target.FullName, fi.Name);
            fi.CopyTo(Path.Combine(target.FullName, fi.Name), true);
        }

        // Copy each subdirectory using recursion.
        foreach (DirectoryInfo diSourceSubDir in source.GetDirectories())
        {
            DirectoryInfo nextTargetSubDir =
                target.CreateSubdirectory(diSourceSubDir.Name);
            CopyAll(diSourceSubDir, nextTargetSubDir);
        }
    }

    public static void Main()
    {
        string sourceDirectory = @"c:\sourceDirectory";
        string targetDirectory = @"c:\targetDirectory";

        Copy(sourceDirectory, targetDirectory);
    }

    // Output will vary based on the contents of the source directory.
}

递归复制文件夹而不递归，以避免堆栈溢出。

public static void CopyDirectory(string source, string target)
{
    var stack = new Stack<Folders>();
    stack.Push(new Folders(source, target));

    while (stack.Count > 0)
    {
        var folders = stack.Pop();
        Directory.CreateDirectory(folders.Target);
        foreach (var file in Directory.GetFiles(folders.Source, "*.*"))
        {
            File.Copy(file, Path.Combine(folders.Target, Path.GetFileName(file)));
        }

        foreach (var folder in Directory.GetDirectories(folders.Source))
        {
            stack.Push(new Folders(folder, Path.Combine(folders.Target, Path.GetFileName(folder))));
        }
    }
}

public class Folders
{
    public string Source { get; private set; }
    public string Target { get; private set; }

    public Folders(string source, string target)
    {
        Source = source;
        Target = target;
    }
}

一个只有一个循环复制所有文件夹和文件的变体:

foreach (var f in Directory.GetFileSystemEntries(path, "*", SearchOption.AllDirectories))
{
    var output = Regex.Replace(f, @"^" + path, newPath);
    if (File.Exists(f)) File.Copy(f, output, true);
    else Directory.CreateDirectory(output);
}

抱歉之前的代码，它仍然有bug:((成为最快枪问题的猎物)。这里是测试和工作。键是SearchOption。AllDirectories，这消除了显式递归的需要。

string path = "C:\\a";
string[] dirs = Directory.GetDirectories(path, "*.*", SearchOption.AllDirectories);
string newpath = "C:\\x";
try
{
    Directory.CreateDirectory(newpath);
}
catch (IOException ex)
{
    Console.WriteLine(ex.Message);
}
for (int j = 0; j < dirs.Length; j++)
{
    try
    {
        Directory.CreateDirectory(dirs[j].Replace(path, newpath));
    }
    catch (IOException ex)
    {
        Console.WriteLine(ex.Message);
    }
}

string[] files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
for (int j = 0; j < files.Length; j++)            
{
    try
    {
        File.Copy(files[j], files[j].Replace(path, newpath));
    }
    catch (IOException ex)
    {
        Console.WriteLine(ex.Message);
    }
}