如何通过Xpath组合不同的值返回

Question

<p class="pd-price">
    <img alt="€" src="http://www.redcoon.es/templates/tpl/img/pd/pd-price/euro_small.png">
    <img class="offsetStandard" alt="2" src="http://www.redcoon.es/templates/tpl/img/pd/pd-price/2.png">
    <img class="offsetStandard" alt="6" src="http://www.redcoon.es/templates/tpl/img/pd/pd-price/6.png">
    <img class="offsetStandard" alt="1" src="http://www.redcoon.es/templates/tpl/img/pd/pd-price/1.png">
    <img class="offsetStandard" alt="-" src="http://www.redcoon.es/templates/tpl/img/pd/pd-price/minus_point.png">
</p>

How to write an Xpath for this paragraph so that it will return "€261-". the Combine String of all the alt tag.

Answer 1

Use

 string-join(p/img/@alt, "")

that will first select the text of all alt attributes and then combine it in a string

Answer 2

在Xpath 2中，您有string-join

string-join(p[@class='pd-price']/img/@alt, '')