其实代码demo很简洁,只是逻辑有点绕,主要是要一层一层调用自己,要清楚当前是第几层调用,及递归调用时进的点和出的点在哪儿,一切就清晰明了了。
/// <summary>/// 删除指定目录下面的所有文件和文件夹/// </summary>/// <param name="path"></param>/// <param name="level"></param>/// <param name="isFirstCall"></param>static void DeleteAllFilesAndFolders(string path,int level,bool isFirstCall){level++;Console.WriteLine($"Current Level:{level},Current Directory:{path}");//删除当前目录下的所有文件string[] files = Directory.GetFiles(path);foreach (var file in files){File.Delete(file);}//判断当前目录是否存在子目录if(Directory.GetDirectories(path).Length != 0){string[] dirs = Directory.GetDirectories(path);for (int i = 0; i < dirs.Length; i++){DeleteAllFilesAndFolders(dirs[i], level,false);}}//删除当前目录,只保留传进来的根目录if (!isFirstCall){Directory.Delete(path);Console.WriteLine($"已删除Level{level}目录:{path}");}}/// <summary>/// 将源路径下的所有文件和文件夹全部复制到目标文件夹中/// </summary>/// <param name="sourceDirectory"></param>/// <param name="DestinationDirectory"></param>/// <param name="level"></param>static void CopyAllFilesAndFolders(string sourceDirectory,string DestinationDirectory,int level = 0){level++;Console.WriteLine($"Current Level: {level}");Console.WriteLine($"Current Source Directory: {sourceDirectory}");Console.WriteLine($"Current Destination Directory: {DestinationDirectory}");//将源目录下的文件复制到目标目录下string[] sourceFilePaths = Directory.GetFiles(sourceDirectory);string sourceFileName = null;foreach (string sourceFilePath in sourceFilePaths){sourceFileName = Path.GetFileName(sourceFilePath);File.Copy(sourceFilePath, DestinationDirectory + "\\"+ sourceFileName);}//从源头目录中获取其子目录string[] dirs = Directory.GetDirectories(sourceDirectory);string TargetDirectory = null;if (dirs.Length !=0){//在目标目录中创建子目录for (int i = 0; i < dirs.Length; i++){string[] dir_splited = dirs[i].Split('\\');//TargetDirectory = dirs[i].Replace(sourceDirectory, DestinationDirectory);TargetDirectory = DestinationDirectory + "\\" + dir_splited[dir_splited.Length - 1];Directory.CreateDirectory(TargetDirectory);CopyAllFilesAndFolders(dirs[i], TargetDirectory,level);}}}
private void CSV2List_Load(object sender, EventArgs e)
{string sourceDirectory = @"D:\Test";string targetDirectory = @"D:\Target";//删除指定目录下的所有文件和文件夹DeleteAllFilesAndFolders(targetDirectory, 0, true);MessageBox.Show("Cleared");CopyAllFilesAndFolders(sourceDirectory, targetDirectory,0);MessageBox.Show("Copied");
}
代码执行的控制台输出如下:
运行程序,先清楚目标目录下的所有文件和文件夹,然后将源目录D:\Test下的所有文件和子目录都被复制到D:\Target目录下。