c# - 使用 HTML Agility Pack 抓取节点右侧的文本

Question

HTML：

<strong>Capture Date/Time:</strong> August 1, 2012 1:05:00 PM EST<br>
<strong>Instructor:</strong> Ash<br>
<strong>Instructor Email:</strong> email@email.com<br>
<strong>Course ID:</strong> Course321<br>

我将如何获取每个强节点右侧的文本？

例如，为了获取课程 ID，我最终得到了一个字符串“Course321”。

代码：

private string getCourseID()
{
    foreach (HtmlAgilityPack.HtmlNode strong in htmlDoc.DocumentNode.SelectNodes("//strong"))
    {
        string innerText = strong.InnerText;

        if (innerText.Contains("Course ID"))
        {
            //select the outer text
            //return outertext;
        }
    }
}

当前代码：

private string getCourseID()
{
    HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();

    string value = "Error";

    foreach (HtmlAgilityPack.HtmlNode strong in htmlDoc.DocumentNode.SelectNodes("//strong"))
    {
        string innerText = strong.InnerText;

        if (innerText.Contains("Course ID"))
        {
            HtmlAgilityPack.HtmlNode sibling = strong.SelectSingleNode("following-sibling::text()");

            value = sibling.InnerText.Trim();

            MessageBox.Show(value);
        }
    }

    return value;
}

Answer 1

使用 following-sibling::* XPath 轴：

HtmlNode sibling = strong.SelectSingleNode("following-sibling::text()");
Console.WriteLine("Course ID = " + sibling.InnerText.Trim());

Answer 2

对于那些分享我的 XPathofobia 的人，这样做可以获得兄弟姐妹发布 strong-tags ：

new HtmlDocument().LoadHtml("blah blah blah").DocumentNode.DescendantsAndSelf().Where (dn => dn.Name == "strong").Select (dn => dn.NextSibling.InnerText)