HtmlAgilityPack获取页面标题和H1标签 [英] HtmlAgilityPack getting page title and H1 tags

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本文介绍了HtmlAgilityPack获取页面标题和H1标签的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

嘿,我正在尝试通过以下操作从网页获取页面标题和H1标签

Hey all i am trying to get the page title and H1 tags from a webpage by doing the following

    doc.LoadHtml(htmlSourceCode)

    txtTitle.Text = doc.GetElementsByTagName("title").InnerText()

    txtH1.Text = doc.GetElementsByTagName("H1").InnerText()

    For Each channel In doc.DocumentNode.SelectNodes(".//meta[@name='description']")
        txtDescription.Text = channel.Attributes("content").Value
    Next

上面唯一有效的代码是txtDescription部分。标题和H1都没有。我需要使用哪种类型的语法才能获得这两个标签?

The only code above that works is the txtDescription part. Both the title and H1 do not. What type of syntax do i need to use in order to get those 2 tags?

html代码如下所示:

The html code looks like this:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html;charset=utf-8" /><title>
    The title text is here!
</title><link rel="icon" type="image/x-icon" href="http://www.zzzz.com/favicon.ico" />
....
<div class="main-content">
    <div class="block-info">
        <div class="container">
            <div class="article">
                <h1>
                    This is the H1 tag with the text!</h1>

<p>As the 2nd held tru


推荐答案

您可以使用 doc.DocumentNode.SelectSingleNode( // head / title) doc.DocumentNode.SelectNodes( // body // h1)

doc.DocumentNode.Descendants( title)。SingleOrDefault() doc.DocumentNode.Descendants( h1)

这篇关于HtmlAgilityPack获取页面标题和H1标签的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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