先安装PuppeteerSharp的库
然后调用如下方法

   private async Task ScreenShotAsync(string url){//using var browserFetcher = new BrowserFetcher();//await browserFetcher.DownloadAsync();await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });await using var page = await browser.NewPageAsync();await page.GoToAsync(url);await page.WaitForTimeoutAsync(1000);var viewportSize = await page.EvaluateExpressionAsync<dynamic>("({ width: window.innerWidth, height: window.innerHeight })");await page.ScreenshotAsync("test.png", new ScreenshotOptions(){Clip = new Clip{X = 0,Y = 0,Width = viewportSize.width,Height = viewportSize.height}});}

指定截图当前页内容，不滚动
如果想要截图所有的界面：

  await page.ScreenshotAsync("test.png", new ScreenshotOptions() { FullPage=true});