使用C#、XML和XPATH从HTML中提取特定标记的值

StringReader txtReader;
txtReader = new StringReader(cleanedMarkUp);
XPathDocument xdoc = new XPathDocument(txtReader);

XPathNavigator nav = xdoc.CreateNavigator();

nav.MoveToRoot();

XPathExpression expr = nav.Compile("//tr[@bgcolor='#f3f2f1']");

XPathNodeIterator node = nav.Select(expr);

while (node.MoveNext())
    MessageBox.Show(node.Current.Value);