c# - 获取跨度标签内容？

Question

好的，所以我想从<span>标签中获取情节摘要，它似乎不适用于所有网页。

这就是我所拥有的：

private ArrayList getSynopsis()
{
    for (int i = 0; i < animeURLList.Count; i++)
    {

            var mainURL = "http://www.animenewsnetwork.com";
            var theHTML = wc.DownloadString(mainURL + (string) animeURLList[i]);
            MessageBox.Show(theHTML);
            //inner html for the span info
            HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
            doc.LoadHtml(theHTML);
            //var array = doc.DocumentNode.SelectNodes("//div[@id='infotype-12'][@class='encyc-info-type br']);
            //MessageBox.Show("got here" + array.ToString());
            ArrayList synopList = new ArrayList();;

            foreach (HtmlNode node doc.DocumentNode.SelectNodes("//div[@id='infotype-12'][@class='encyc-info-type br']"))
            {
                    synopList.Add(node.GetAttributeValue("span", "null"));
            }

    }
    return null;
}

我正在尝试从以下位置获取文本：

<div id="infotype-12" class="encyc-info-type br">
<strong>Plot Summary:</strong> 
<span>Tooru takes a test so she can enter the same high school as Run, the girl she     likes. She passes, but when she goes to tell Run, she finds her hugging a girl she's never     seen before.</span>
</div>

跨度标签中有情节摘要，这是我想要抓住的。

我仍然无法理解这一点。

Answer 1

Try the following in your loop:

synopList.Add(node.SelectSingleNode("span").InnerText);

Additionally, the XPath you are using:

"//div[@id='infotype-12'][@class='encyc-info-type br']"

Would be better as:

"//div[@id='infotype-12' and @class='encyc-info-type br']"