mfc递归删除文件夹

BOOL myDeleteDirectory(CString directory_path)   //删除一个文件夹下的所有内容
{
    BOOL ret=TRUE;
    CFileFind finder;
    CString path;
    path.Format(_T("%s/*.*"),directory_path);
    BOOL bWorking = finder.FindFile(path);
    while(bWorking)
    {
        bWorking = finder.FindNextFile();
        if(finder.IsDirectory() && !finder.IsDots())
        {//处理文件夹
            myDeleteDirectory(finder.GetFilePath()); //递归删除文件夹
            RemoveDirectory(finder.GetFilePath());
        }
        else
        {//处理文件
            DeleteFile(finder.GetFilePath());
        }
    }
    ret = RemoveDirectoryW(directory_path);
    return ret;
}