TD内的XPath所有A还包含具有“Directs”内部文本的H3。
我正在抓取一个网站。有一个 TD，其中第一个子节点是 H3，其内部文本为“Directs”。在 TD 中，其他子项（H3 除外）是链接。我知道 XPath 完全能够从 TD 返回 A 标签子级，该 TD 还包含带有“Directs”内部文本的 H3，但我似乎无法正确理解。我想出的丑陋的解决方法如下，但我想学习最好的 XPath 方法：
For Each thisH3 As HtmlNode In Doc.SelectNodes("//h3")
If thisH3.InnerText = "Directs" Then
For Each nChild As HtmlNode In thisH3.ParentNode.ChildNodes
If nChild.Name = "a" Then
Debug.Print(nChild.InnerText)
End If
Next
End If
Next
I'm scraping a website. There's a TD where the first child node is an H3 with an innertext of "Directs". In the TD the other children (besides the H3) are the links. I know XPath is perfectly capable of just returning the A tag children from a TD that also contains an H3 with an innertext of "Directs", I just can't seem to get it right. The ugly work-around I came up with is the following, but I want to learn the best XPath method:
For Each thisH3 As HtmlNode In Doc.SelectNodes("//h3")
If thisH3.InnerText = "Directs" Then
For Each nChild As HtmlNode In thisH3.ParentNode.ChildNodes
If nChild.Name = "a" Then
Debug.Print(nChild.InnerText)
End If
Next
End If
Next
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使用此 XPath 检索
td中具有h3且值为Directs的所有a：Use this XPath to retrieve all
aintdwhich haveh3with valueDirects: