1 var doc = new HtmlAgilityPack.HtmlDocument();
2 string html="";
3 doc.LoadHtml(html);
4 Func<HtmlAgilityPack.HtmlNodeCollection, string, Dictionary<string, string>, bool, List<HtmlAgilityPack.HtmlNode>> getNodeByTagNameAndAttr = null;
5 Func<HtmlAgilityPack.HtmlNode, string, Dictionary<string, string>, bool> fun_Match = (c, tagName, Attr) =>
6 {
7 return c.Name == tagName && !Attr.Select(cc => cc.Key).Except(c.Attributes.Select(cc => cc.Name)).Any() && c.Attributes.Join(Attr, a => new { a.Name, a.Value }, b => new { Name = b.Key, b.Value }, (a, b) => 1).Count() == Attr.Count;
8 };
9 getNodeByTagNameAndAttr = (nodes, tagName, Attr, all) =>
10 {
11 List<HtmlAgilityPack.HtmlNode> li = new List<HtmlAgilityPack.HtmlNode>();
12
13 foreach (var c in nodes)
14 {
15 if (fun_Match(c, tagName, Attr))
16 {
17 li.Add(c);
18 }
19 if (!all && li.Count > 0)
20 {
21 break;
22 }
23 if (c.HasChildNodes)
24 {
25 var nt = getNodeByTagNameAndAttr(c.ChildNodes, tagName, Attr, all);
26 if (nt != null)
27 {
28 li.AddRange(nt);
29 }
30 }
31 if (!all && li.Count > 0)
32 {
33 break;
34 }
35
36 }
37 return li;
38
39 };
40
41 //读取doc.DocumentNode.ChildNodes 元素下的a标签(参数可以包含属性,也可以指定是否获取所有元素
42 List<HtmlAgilityPack.HtmlNode> node = getNodeByTagNameAndAttr(doc.DocumentNode.ChildNodes, "a", new Dictionary<string, string> { }, true);
