如何使用Nokogiri在<!--Sanction 3-->
(解析HTML)中查找文本?
我正在网站中输入一个搜索词,结果将显示在下一页。如果数据符合某些条件,我需要以编程方式从结果页面获取数据。
我在分析结果页面时注意到,这些项目被分解为制裁。我需要知道制裁是否有数据,如果有,它是否包含我的关键词;我在找那个县/州。我不知道如何将其视为制裁。以下是一些HTML:
<!--Sanction 3-->
<table border="2" cellpadding="2" cellspacing="0" width="100%">
<thead>
<tr>
<th class="XXheaderClass" colspan="5" scope="colgroup">
<table bgcolor="#ff9999" width="100%">
<tbody>
<tr>
<td class="XXsanctionHeader1">
<span class="XXtextBold">Requirements Met</span>
</td>
<td class="XXsanctionHeader2">
<span class="XXtextBold">Status: GOOD</span>
</td>
</tr>
</tbody>
</table>
</th>
</tr>
<tr>
<th class="XXheaderClass" width="31%" scope="col">
<span class="XXsmallTextBold">Description</span>
</th>
<th class="XXheaderClass" width="12%" scope="col">
<span class="XXsmallTextBold">Effective Date</span>
</th>
<th class="XXheaderClass" width="12%" scope="col">
<span class="XXsmallTextBold">Number</span>
</th>
<th class="XXheaderClass" width="12%" scope="col">
<span class="XXsmallTextBold">County/State</span>
</th>
<th class="XXheaderClass" width="33%" scope="col">
<span class="XXsmallTextBold">Address and Phone Number</span>
</th>
</tr>
</thead>
<tfoot>
<tr>
<td class="footerClass" colspan="5">
<table class="panelBox">
<tr>
<td>
<a href="SanctionHelpPages/Sanction03Help.aspx" id="MainContent_lvSanction3_sanction03Link" class="outputLinkEx"><span class="XXlinkBold">
Click Here</span></a>
</td>
<td>
<span class="XXtextBold">to resolve,
requirements met.</span>
</td>
</tr>
</table>
</td>
</tr>
</tfoot>
<tbody>
<tr id="MainContent_lvSanction3_Tr1_0">
<td class="XXsmallText">
<span id="MainContent_lvSanction3_lblDescription_0">DESCRIPTION </span>
</td>
<td class="XXsmallText">
<span id="MainContent_lvSanction3_lblEffectiveDate_0">9/19/20011</span>
</td>
<td class="XXsmallText">
<span id="MainContent_lvSanction3_lblNumber_0">1111 </span>
</td>
<td class="XXsmallText">
<span id="MainContent_lvSanction3_lblCountyState_0">MyCounty </span>
</td>
<td class="XXsmallText">
<span id="MainContent_lvSanction3_lblAddressAndPhoneNumber_0">1234 MyRoad AVE. CITY (xxx)xxx-xxxx</span>
</td>
</tr>
</tbody>
</table>
<br />
您可以使用doc.xpath("//comment()")
查找所有注释节点。然后,您可以遍历这些节点,并检查它们的兄弟节点是否有您的数据。然而,如果没有更多的信息,就很难给出一个全面的答案。