我想用c#将一个目录的全部内容从一个位置复制到另一个位置。
使用System似乎没有办法做到这一点。没有大量递归的IO类。
如果我们添加对Microsoft的引用,VB中有一个方法可以使用。VisualBasic:
new Microsoft.VisualBasic.Devices.Computer().
FileSystem.CopyDirectory( sourceFolder, outputFolder );
这似乎是一个相当丑陋的黑客。有没有更好的办法?
我想用c#将一个目录的全部内容从一个位置复制到另一个位置。
使用System似乎没有办法做到这一点。没有大量递归的IO类。
如果我们添加对Microsoft的引用,VB中有一个方法可以使用。VisualBasic:
new Microsoft.VisualBasic.Devices.Computer().
FileSystem.CopyDirectory( sourceFolder, outputFolder );
这似乎是一个相当丑陋的黑客。有没有更好的办法?
当前回答
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);
}
}
其他回答
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);
}
}
如果您喜欢Konrad的流行答案,但希望源代码本身是目标文件夹下的一个文件夹,而不是将它的子文件夹放在目标文件夹下,下面是实现该目的的代码。它返回新创建的DirectoryInfo,这很方便:
public static DirectoryInfo CopyFilesRecursively(DirectoryInfo source, DirectoryInfo target)
{
var newDirectoryInfo = target.CreateSubdirectory(source.Name);
foreach (var fileInfo in source.GetFiles())
fileInfo.CopyTo(Path.Combine(newDirectoryInfo.FullName, fileInfo.Name));
foreach (var childDirectoryInfo in source.GetDirectories())
CopyFilesRecursively(childDirectoryInfo, newDirectoryInfo);
return newDirectoryInfo;
}
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.
}
或者,如果你想走一条艰难的路,为你的微软项目添加一个引用。然后使用下面的代码:
Microsoft.VisualBasic.FileIO.FileSystem.CopyDirectory(fromDirectory, toDirectory);
然而,使用一个递归函数是一个更好的方法,因为它不需要加载VB dll。
这是我的代码,希望对大家有所帮助
private void KCOPY(string source, string destination)
{
if (IsFile(source))
{
string target = Path.Combine(destination, Path.GetFileName(source));
File.Copy(source, target, true);
}
else
{
string fileName = Path.GetFileName(source);
string target = System.IO.Path.Combine(destination, fileName);
if (!System.IO.Directory.Exists(target))
{
System.IO.Directory.CreateDirectory(target);
}
List<string> files = GetAllFileAndFolder(source);
foreach (string file in files)
{
KCOPY(file, target);
}
}
}
private List<string> GetAllFileAndFolder(string path)
{
List<string> allFile = new List<string>();
foreach (string dir in Directory.GetDirectories(path))
{
allFile.Add(dir);
}
foreach (string file in Directory.GetFiles(path))
{
allFile.Add(file);
}
return allFile;
}
private bool IsFile(string path)
{
if ((File.GetAttributes(path) & FileAttributes.Directory) == FileAttributes.Directory)
{
return false;
}
return true;
}