html - 从特定网页 Div 中获取图像标签

Question

我正在尝试从网页中的特定 div 获取图像标签。这是网页链接page link

我用过这段代码:

var webGet = new HtmlWeb(); 
var document = webGet.Load(txt.Text);
var infos = from info in document.DocumentNode.SelectNodes("//div[@id='custom-description']")
            from link in info.SelectNodes("img").Where(x => x.Attributes.Contains("src"))
            select new 
            {
                LinkURL = link.Attributes["src"].Value
            };
lbl.Text = infos.ToString();

但它返回空值。请告诉我这段代码有什么问题。提前致谢

Answer 1

 HtmlWeb web = new HtmlWeb();
   HtmlAgilityPack.HtmlDocument document = web.Load(url);
    var rateNode = from info in document.DocumentNode.SelectNodes("//div[@class='class name']")
                        from link in info.SelectNodes("//img").Where(x=>x.Attributes.Contains("src"))
                        select new
                        {
                         link.Attributes["src"].Value
                        };

   // return View(lstRecords);


    string result;
    lbl.Text = rateNode.ToString();
    foreach (var a in rateNode)
    {
        int count=0;
        Image img = new Image();

        img.ID = count + "a";
        count++;

        img.ImageUrl =  a.Value
        Controls.Add(img);
    }