删除多个目录中的所有文件和文件夹，但离开directoy

Question

嗯，我喜欢这个漂亮的代码在这里似乎赫然工作，但我似乎无法任意多个目录添加到它

DirectoryInfo dir = new DirectoryInfo(@"C:\temp"); 

foreach(FileInfo files in dir.GetFiles()) 
{ 
    files.Delete(); 
} 

foreach (DirectoryInfo dirs in dir.GetDirectories()) 
{ 
    dirs.Delete(true); 
} 

我还想添加特殊文件夹以及历史记录和饼干等，我将如何去做（我想包括至少4-5个不同的文件夹）

Answer 1

也许这样的事情会有所帮助。我没有测试它。

public void DeleteDirectoryFolders(DirectoryInfo dirInfo){ 
    foreach (DirectoryInfo dirs in dirInfo.GetDirectories()) 
    { 
     dirs.Delete(true); 
    } 
} 

public void DeleteDirectoryFiles(DirectoryInfo dirInfo) { 
    foreach(FileInfo files in dirInfo.GetFiles()) 
    { 
     files.Delete(); 
    } 
} 

public void DeleteDirectoryFilesAndFolders(string dirName) { 
    DirectoryInfo dir = new DirectoryInfo(dirName); 
    DeleteDirectoryFiles(dir) 
    DeleteDirectoryFolders(dir) 
} 

public void main() { 
    List<string> DirectoriesToDelete; 
    DirectoriesToDelete.add("c:\temp"); 
    DirectoriesToDelete.add("c:\temp1"); 
    DirectoriesToDelete.add("c:\temp2"); 
    DirectoriesToDelete.add("c:\temp3"); 
    foreach (string dirName in DirectoriesToDelete) { 
    DeleteDirectoryFilesAndFolders(dirName); 
    } 
} 

Answer 2

这是一个递归函数，它将删除给定目录中的所有文件并向下浏览目录结构。可以提供模式字符串，以便只对给定扩展名的文件起作用，就像您对其他答案的评论一样。

Action<string,string> fileDeleter = null; 
fileDeleter = (directoryPath, pattern) => 
{ 
    string[] files; 
    if (!string.IsNullOrEmpty(pattern)) 
     files = Directory.GetFiles(directoryPath, pattern); 
    else 
     files = Directory.GetFiles(directoryPath); 

    foreach (string file in files) 
    { 
     File.Delete(file); 
    } 

    string[] directories = Directory.GetDirectories(directoryPath); 
    foreach (string dir in directories) 
     fileDeleter(dir, pattern); 
}; 

string path = @"C:\some_folder\"; 
fileDeleter(path, "*.bmp"); 

目录以其它方式单独留下，这显然可以以与阵列或字符串列表使用具有多个初始目录路径工作。

以下是与标准函数相同的代码，也将递归作为参数选项。

public void DeleteFilesFromDirectory(string directoryPath, string pattern, bool includeSubdirectories) 
{ 
    string[] files; 
    if (!string.IsNullOrEmpty(pattern)) 
     files = Directory.GetFiles(directoryPath, pattern); 
    else 
     files = Directory.GetFiles(directoryPath); 

    foreach (string file in files) 
    { 
     File.Delete(file); 
    } 

    if (includeSubdirectories) 
    { 
     string[] directories = Directory.GetDirectories(directoryPath); 
     foreach (string dir in directories) 
      DeleteFilesFromDirectory(dir, pattern, includeSubdirectories); 
    } 
}