如何清空文件夹里面的所有文件和文件夹

private void deletefileordic(system.io.directoryinfo path)
        {
            try
            {
                foreach (system.io.directoryinfo d in path.getdirectories())
                {
                    d.delete(true);
                }
                foreach (system.io.fileinfo f in path.getfiles())
                {
                    f.delete();
                }
            }
            catch (exception ex)
            {
            }
        }