c# 如何截屏电脑桌面

以下是C#实现截屏电脑桌面的代码：

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ScreenCaptureExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // 获取屏幕分辨率
            int screenLeft = SystemInformation.VirtualScreen.Left;
            int screenTop = SystemInformation.VirtualScreen.Top;
            int screenWidth = SystemInformation.VirtualScreen.Width;
            int screenHeight = SystemInformation.VirtualScreen.Height;

            // 创建一个与屏幕大小相同的Bitmap
            Bitmap bmp = new Bitmap(screenWidth, screenHeight);

            // 从屏幕左上角开始截取
            using (Graphics g = Graphics.FromImage(bmp))
            {
                g.CopyFromScreen(screenLeft, screenTop, 0, 0, bmp.Size);
            }

            // 保存截图
            bmp.Save("screenshot.png");

            Console.WriteLine("截图已保存至当前目录下的screenshot.png文件中。");
        }
    }
}