C# 为什么Xpath htmlagilitypack选择不起作用
好的，这里是源代码和我的xpath 我试图选择第三个值，但它不工作，即使选择第一个值的工作C# 为什么Xpath htmlagilitypack选择不起作用,c#,xpath,html-agility-pack,C#,Xpath,Html Agility Pack,好的，这里是源代码和我的xpath 我试图选择第三个值，但它不工作，即使选择第一个值的工作 HtmlDocument hdMyDoc = new HtmlDocument(); hdMyDoc.LoadHtml(File.ReadAllText("html.txt")); HtmlNode hdNodes = hdMyDoc.DocumentNode.SelectSingleNode (string.Format("//div[@
HtmlDocument hdMyDoc = new HtmlDocument();
hdMyDoc.LoadHtml(File.ReadAllText("html.txt"));
HtmlNode hdNodes = hdMyDoc.DocumentNode.SelectSingleNode
(string.Format("//div[@class='rating'][3]", "div", "class", "rating"));
[1]<div class="anatablo">
<div class="helpful">
Bu inceleme sizce faydalı mı? <button class="yesbutton"
onclick=
"location.href='http://www.teknobiyotik.com/advancedreviews/helpfulness/post/reviewId/3403/actionName/Yes/';"
type="button"></button> <button class="nobutton" onclick=
"location.href='http://www.teknobiyotik.com/advancedreviews/helpfulness/post/reviewId/3403/actionName/No/';"
type="button"></button>
</div>
<div class="baslik">
Yorumlayan : Ufuk
</div>
<table class="alttablo">
<tbody>
<tr>
<td>
<table>
<tbody>
<tr>
<td class="yildiz">
<table cellspacing="0" class=
"ratings-list">
<tbody>
<tr>
<td class="label" style=
"font-weight: bold">
Fiyat</td>
</tr>
<tr>
<td>
<div class="rating-box"
style=
"margin-bottom:3px;">
<div class="rating"
style=
"width: 33%;">
</div>
</div>
</td>
</tr>
<tr>
<td class="label" style=
"font-weight: bold">
Kullanım Kolaylığı</td>
</tr>
<tr>
<td>
<div class="rating-box"
style=
"margin-bottom:3px;">
<div class="rating"
style=
"width: 66%;">
</div>
</div>
</td>
</tr>
<tr>
<td class="label" style=
"font-weight: bold">
Kalite</td>
</tr>
<tr>
<td>
<div class="rating-box"
style=
"margin-bottom:3px;">
<div class="rating"
style=
"width: 99%;">
</div>
</div>
</td>
</tr>
</tbody>
</table>
</td>
<td class="yorumalani">
<div class="yorumbaslik">
<strong>Kocaman birşey</strong> (
06.07.2013 )
</div>Bu fiyata akasa ürünü hem de
isteyebileceğinizden daha büyük bir
mouse alanı. Yere adeta yapışıyor.
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<table width="100%">
<tbody>
<tr>
<td>
<div class="review-footer" style="display:block;">
<table style="width:100%;">
<tbody>
<tr>
<td class="socialshare">
<!-- AW_AdvancedReviews Socialshare block start -->
Bu incelemeyi paylaşın <a href=
"http://www.facebook.com/share.php?u=http%3A%2F%2Fwww.teknobiyotik.com%2Freview%2Fproduct%2Fview%2Fid%2F3403%2F%3F___SID%3DU&t=Kocaman%20bir%C5%9Fey"
target="_blank"><img alt="Facebook"
height="16" src=
"http://www.teknobiyotik.com/skin/frontend/default/default/advancedreviews/images/link-facebook.gif"
title="Add to Facebook" width=
"16"></a>
<!-- AW_AdvancedReviews Socialshare block end -->
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<ul></ul>
你要什么？
尤鲁姆莱安：乌夫克
菲亚特
库兰姆·科拉伊尔ııı
钾铁矿
Kocaman birşey(
06.07.2013 )
不，菲雅塔·阿卡萨·吕努赫姆·德
伊斯特耶比莱切登·达哈·比尔克
老鼠alanı。叶尔阿德塔·亚普·约尔。
不可能
hdMyDoc.DocumentNode.SelectSingleNode("(//div[@class='rating'])[3]");
xpath中的（和）括号非常重要。我不明白
字符串.Format（“//div[@class='rating'][3]，“div”，“class”，“rating”）string.Format（“//div[@class='rating'][{2}]”，“div”，“class”，“rating”）string.format“div”，“class”，“rating”hdMyDoc.DocumentNode.SelectSingleNode（“//div[@class='rating'][1]”的东西SelectNodes[1]