C# 文件并从 1 自动重命名？

Question

我用 c# 编写了这段代码，用于更改文件夹的位置和该文件夹的所有子文件夹。我想在将其复制到目的地时更改所有文件夹的名称。例如，我想将名称从 1 更改为...。我应该如何更改我的代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;
namespace Folder
{
    class clssMoveFolder
    {

        string temppath;
        public string StrtxtSource;
        public string destDirName;

        public void Directorycopy(string sourceDirName, string destDirName, bool cutSubDirs, string strExtension)
        {
           try
            {

                DirectoryInfo dir = new DirectoryInfo(sourceDirName);
                DirectoryInfo[] dirs = dir.GetDirectories();
                // If the source directory does not exist, throw an exception.

                if (!dir.Exists)
                {
                    throw new DirectoryNotFoundException("Source directory does not exist or could not be found: " + sourceDirName);
                }
                FileInfo[] files = dir.GetFiles();
                if (!Directory.Exists(destDirName))
                {
                    Directory.CreateDirectory(destDirName);
                }
                //Get the file contents of the directory to copy.
                for (int a = 0; a < files.Length; ++a)
                {
                    // Create the path to the new copy of the file.
                    if (files[a].Extension == "."+strExtension  )
                    {
                        temppath = Path.Combine(destDirName, files[a].Name);
                        files[a].MoveTo(temppath);
                    }
                    else if (files[a].Extension == strExtension)
                    {
                        temppath = Path.Combine(destDirName, files[a].Name);
                        files[a].MoveTo(temppath);
                    }
                    else if (strExtension == "AllFiles")
                    {
                        temppath = Path.Combine(destDirName, files[a].Name);
                        files[a].MoveTo(temppath);
                    }
                    else
                        files[a].Delete();
                   dir.Refresh();
                }
                FileInfo[] filesCheck = dir.GetFiles();
                if (dirs.Length == 0 && filesCheck.Length == 0 && dir.Name != StrtxtSource)
                {
                    dir.Delete();
                }

                // If copySubDirs is true, copy the subdirectories.
                if (cutSubDirs)
                {

                    foreach (DirectoryInfo subdir in dirs)
                    {

                        // Copy the subdirectories.

                        string temppath= Path.Combine(destDirName, subdir.Name);

                        Directorycopy(subdir.FullName, temppath,cutSubDirs,strExtension);
                    }
                }
            }
            catch (Exception e)
            {

                MessageBox.Show(e.ToString());
            }
        }

    }
}

Answer 1

如果您只是想要在复制后重命名文件，您可以直接以不同的名称复制它。例如。而不是复制 a.txt 并将其重命名为 b.txt 之后，您可以将原始 a.txt 复制为 b .txt 到目标目录。

重命名可以通过使用 File.Move 来完成。方法。

File.Move("a.txt", "b.txt");

---

如果您希望能够执行此操作，即使其他人将文件复制到目录中(例如，通过使用 Windows 资源管理器或其他应用程序编写的文件)，您可能需要更仔细地了解看看 FileSystemWatcher .您可以使用它来监视指定目录(可选地包括它的子目录)中的更改并对这些更改使用react。

...
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = @"D:\SomeTestDirectory";
watcher.Filter = "*.*";
watcher.NotifyFilter = NotifyFilters.FileName; // Trigger only on events associated with the filename
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.EnableRaisingEvents = true;            // Starts the "watching"
...

private static void OnChanged(object source, FileSystemEventArgs e)
{
   // Do whatever you want here, e.g. rename the file.
   Console.WriteLine("File: " +  e.FullPath + " " + e.ChangeType);
}