刪除多個目錄中的所有文件和文件夾，但離開directoy

Question

嗯，我喜歡這個漂亮的代碼在這裏似乎赫然工作，但我似乎無法任意多個目錄添加到它

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

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

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

我還想添加特殊文件夾以及歷史記錄和餅乾等，我將如何去做（我想包括至少4-5個不同的文件夾）

Answer 1

也許這樣的事情會有所幫助。我沒有測試它。

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

這是一個遞歸函數，它將刪除給定目錄中的所有文件並向下瀏覽目錄結構。可以提供模式字符串，以便只對給定擴展名的文件起作用，就像您對其他答案的評論一樣。

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"); 

目錄以其它方式單獨留下，這顯然可以以與陣列或字符串列表使用具有多個初始目錄路徑工作。

以下是與標準函數相同的代碼，也將遞歸作爲參數選項。

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); 
    } 
}