c# - c#删除文件夹和子文件夹

Question

我有一个文件夹，其中包含具有只读属性的子文件夹和文件(文件和文件夹)。我想删除此文件夹及其子文件夹和文件。

我写了这段代码:

static void Main(string[] args)
{        
    DirectoryInfo mm = new DirectoryInfo(@"c:\ex");
    string aa = Convert.ToString(mm);
    string[] allFileNames = 
        System.IO.Directory.GetFiles(aa, 
                                     "*.*", 
                                     System.IO.SearchOption.AllDirectories);
    string[] alldirNames = 
       System.IO.Directory.GetDirectories(aa, 
                                        "*", 
                                        System.IO.SearchOption.AllDirectories);

    foreach (string filename in allFileNames)
    {
        FileAttributes attr = File.GetAttributes(filename);
        File.SetAttributes(filename, attr & ~FileAttributes.ReadOnly);

    }

    foreach (string dirname in alldirNames)
    {
        FileAttributes attr = File.GetAttributes(dirname);
        File.SetAttributes(dirname, attr & ~FileAttributes.ReadOnly);
        Directory.Delete(dirname  , true);
    }

    FileInfo[] list = mm.GetFiles();

    foreach (FileInfo k in list)
    {
        k.Delete();
    }
    mm.Delete();
    Console.ReadKey();
}

现在的问题是，每当我运行该程序时，都会出现以下错误:

Could not find a part of the path 'c:\ex\xx\bb'.

这个错误是什么意思？

Answer 1

Directory.Delete(path, true);

Documentation