<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>
如何为此段落编写 Xpath 以使其返回“€261-”。所有 alt 标签的组合字符串。