如何快速检查文件夹是否为空(.NET)？

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string folderPath = @"C:\example_folder";
        bool isFolderEmpty = IsFolderEmpty(folderPath);

        if (isFolderEmpty)
        {
            Console.WriteLine("文件夹为空");
        }
        else
        {
            Console.WriteLine("文件夹不为空");
        }
    }

    static bool IsFolderEmpty(string folderPath)
    {
        if (!Directory.Exists(folderPath))
        {
            throw new DirectoryNotFoundException($"文件夹 {folderPath} 未找到");
        }

        return Directory.GetFiles(folderPath).Length == 0 && Directory.GetDirectories(folderPath).Length == 0;
    }
}