从具有xpath的特定类的表中获取最后一个td

Question

我有以下HTML代码：

<table class="datepicker-days">
  <tbody>
    <tr data-tryxpath-element="0">
      <td></td>
      <td></td>
      <td></td>
      <td></td>
      <td class="day  voc-enabled" data-day="01" data-month="03" data-year="2019" data-date="2019-03-01">01</td>
      <td class="day  voc-enabled" data-day="02" data-month="03" data-year="2019" data-date="2019-03-02">02</td>
      <td class="day  voc-enabled" data-day="03" data-month="03" data-year="2019" data-date="2019-03-03">03</td>
   </tr>
   <tr data-tryxpath-element="1">
       <td class="day  voc-enabled" data-day="04" data-month="03" data-year="2019" data-date="2019-03-04">04</td>
       <td class="day  voc-enabled" data-day="05" data-month="03" data-year="2019" data-date="2019-03-05">05</td>
       <td class="day  voc-enabled" data-day="06" data-month="03" data-year="2019" data-date="2019-03-06">06</td>
       <td class="day  voc-enabled" data-day="07" data-month="03" data-year="2019" data-date="2019-03-07">07</td>
       <td class="day  voc-enabled" data-day="08" data-month="03" data-year="2019" data-date="2019-03-08">08</td>
       <td class="day  voc-enabled" data-day="09" data-month="03" data-year="2019" data-date="2019-03-09">09</td>
       <td class="day  voc-enabled" data-day="10" data-month="03" data-year="2019" data-date="2019-03-10">10</td>
   </tr>
   <tr data-tryxpath-element="2">
       <td class="day  voc-enabled" data-day="11" data-month="03" data-year="2019" data-date="2019-03-11">11</td>
       <td class="day  voc-disabled" data-day="12" data-month="03" data-year="2019" data-date="2019-03-12">12</td>
       <td class="day  voc-disabled" data-day="13" data-month="03" data-year="2019" data-date="2019-03-13">13</td>
       <td class="day  voc-disabled" data-day="14" data-month="03" data-year="2019" data-date="2019-03-14">14</td>
       <td class="day  voc-disabled" data-day="15" data-month="03" data-year="2019" data-date="2019-03-15">15</td>
       <td class="day  voc-disabled" data-day="16" data-month="03" data-year="2019" data-date="2019-03-16">16</td>
       <td class="day  voc-disabled" data-day="17" data-month="03" data-year="2019" data-date="2019-03-17">17</td>
   </tr>
   <tr>
       <td class="day  voc-disabled" data-day="18" data-month="03" data-year="2019" data-date="2019-03-18">18</td>
       <td class="day  voc-disabled" data-day="19" data-month="03" data-year="2019" data-date="2019-03-19">19</td>
       <td class="day  voc-disabled" data-day="20" data-month="03" data-year="2019" data-date="2019-03-20">20</td>
       <td class="day  voc-disabled" data-day="21" data-month="03" data-year="2019" data-date="2019-03-21">21</td>
       <td class="day  voc-disabled" data-day="22" data-month="03" data-year="2019" data-date="2019-03-22">22</td>
       <td class="day  voc-disabled" data-day="23" data-month="03" data-year="2019" data-date="2019-03-23">23</td>
       <td class="day  voc-disabled" data-day="24" data-month="03" data-year="2019" data-date="2019-03-24">24</td>
    </tr>
    ...
</tbody>

我需要使用带有xpath的类voc-enabled元素获取最后一个td。在这个例子中，只有带有文本“11”的td。我最好的aproximation如下：

//table[@class='datepicker-days']//td[contains(@class,'voc-enabled')][last()]

但是这个xpath获得了3个元素，最后一个td在每个tr元素中都有'voc-enabled'类。

当然，这个表是动态的，我总是需要最后一个独立的那一天。

有人能帮助我吗？谢谢。

Answer 1

由于operator precedence in XSLT，您需要将表达式放在括号中：

(//table[@class='datepicker-days']//td[contains(@class,'voc-enabled')])[last()]

错误是[]括号的优先级高于//，因此[last()]在//之前应用。