HTMLAgilityPack xpath
我遇到了这个问题，请问有人可以帮助我吗？
从下面的 URL，我希望获取
<a href="/borsa/azioni/scheda.html?isin=IT0001233417&lang=en">A2A</a>
我正在使用的 XPath 语法的内部文本，但不返回任何数据：
.//table[@class='table_dati']//tbody[@class='constituents']//tr//td[@class='name']//a
URL 是 http://www.borsaitaliana.it /borsa/azioni/ftse-mib/lista.html?lang=en&page=1
预先感谢，
格兰特
I have hit a wall with this one, please could someone help me out?
From the URL below I am looking to get to the inner text of
<a href="/borsa/azioni/scheda.html?isin=IT0001233417&lang=en">A2A</a>
The XPath syntax I am using doesn't return any data:
.//table[@class='table_dati']//tbody[@class='constituents']//tr//td[@class='name']//a
The URL is
http://www.borsaitaliana.it/borsa/azioni/ftse-mib/lista.html?lang=en&page=1
Thanks in advance,
Grant
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评论（3）
//tbody[@class='constituents']//td[@class='name']/a怎么样？实际上，这应该工作得很好。How about
//tbody[@class='constituents']//td[@class='name']/a? This should work pretty well, actually.您的 XPath 以
.开头，因此它是相对于上下文节点的。但你没有告诉我们任何有关背景的信息。也许您想省略最初的.并使其成为“绝对”：无论您在哪里查找，我也会将
//更改为/对于直系子女（一般不是后裔）关系。Your XPath starts with
., so it is relative to the context node. But you haven't told us anything about the context. Maybe you want to omit the initial.and make it "absolute":I would also change the
//to/wherever you're looking for a direct child (not descendant in general) relationship.根据我的经验，HTMLAgilityPack 与 tbody 标签配合得不好。我只是用 tr td 跟踪表格来找到正确的单元格，完全跳过 tbody 。
From my experience, HTMLAgilityPack doesn't play nice with the tbody tag. I just follow up the table with the tr td to find the right cell, skipping tbody altogether.