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await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);var browser = await Puppeteer.LaunchAsync(new LaunchOptions            {                Headless = true            });var page = await browser.NewPageAsync();await page.GoToAsync("https://www.baidu.com");var html = await page.GetContentAsync(); 

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);  browser = await Puppeteer.LaunchAsync(new LaunchOptions  {                 Headless = true  });  var page = await browser.NewPageAsync();  //打開一個新標簽  await page.GoToAsync("https://www.baidu.com"); //訪問頁面

 //設(shè)置截圖選項 ScreenshotOptions screenshotOptions = new ScreenshotOptions(); //screenshotOptions.Clip = new PuppeteerSharp.Media.Clip() { Height = 0, Width = 0, X = 0, Y = 0 };//設(shè)置截剪區(qū)域 screenshotOptions.FullPage = true; //是否截取整個頁面 screenshotOptions.OmitBackground = false;//是否使用透明背景，而不是默認白色背景 screenshotOptions.Quality = 100; //截圖質(zhì)量 0-100（png不可用） screenshotOptions.Type = ScreenshotType.Jpeg; //截圖格式
 await page.ScreenshotAsync("D:\\a.jpg",screenshotOptions); 

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision); browser = await Puppeteer.LaunchAsync(new LaunchOptions {                  Headless = true });var page = await browser.NewPageAsync();  //打開一個新標簽await page.GoToAsync("https://www.baidu.com"); //訪問頁面
//設(shè)置PDF選項PdfOptions pdfOptions = new PdfOptions();pdfOptions.DisplayHeaderFooter = false; //是否顯示頁眉頁腳pdfOptions.FooterTemplate = "";   //頁腳文本pdfOptions.Format = new PuppeteerSharp.Media.PaperFormat(8.27m,11.69m);  //pdf紙張格式 英寸為單位pdfOptions.HeaderTemplate = "";   //頁眉文本pdfOptions.Landscape = false;     //紙張方向 false-垂直 true-水平pdfOptions.MarginOptions = new PuppeteerSharp.Media.MarginOptions() { Bottom = "0px", Left = "0px", Right = "0px", Top = "0px" }; //紙張邊距，需要設(shè)置帶單位的值，默認值是NonepdfOptions.Scale = 1m;            //PDF縮放，從0-1await page.PdfAsync(path, pdfOptions);

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);

1 //可以通過下面的方式配置為從華為云鏡像下載2 BrowserFetcherOptions browserFetcherOptions = new BrowserFetcherOptions();3 browserFetcherOptions.Host = "https://repo.huaweicloud.com";4 await new BrowserFetcher(browserFetcherOptions).DownloadAsync(BrowserFetcher.DefaultRevision);

1 LaunchOptions options = new LaunchOptions(); 2 options.Headless = true; 3 options.DefaultViewport = null; 4 //忽略證書錯誤 5 options.IgnoreHTTPSErrors = true; 6  7 //chromePath就是下載的Chromium瀏覽器解壓的位置11 options.ExecutablePath = chromePath;12 13 browser = await Puppeteer.LaunchAsync(options);