using (Browser browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))

{

using (var page = await browser.NewPageAsync())

{

//设置浏览器的页面大小

await page.SetViewportAsync(new ViewPortOptions

{

Width = 1024,

Height = 768

});

await page.GoToAsync("http://www.baidu.com");

var html = await page.GetContentAsync();

var sourceFile = "";

var memoryStream = new MemoryStream(Encoding.Default.GetBytes(html));

var sr = new StreamReader(memoryStream);

sourceFile = sr.ReadToEnd();

//针对源代码进行分析

var te = new TextExtractor(sourceFile);

te.extract();

sr.Close();

//将页面保存为图片

//await page.ScreenshotAsync(@"D:\1.png",

// new ScreenshotOptions() { FullPage = true, Type = ScreenshotType.Png });

}

}