我有以下Html元素，我想提取值＆＃34; 9-0036031069＆＃34;来自属性＆＃34; data-sku＆＃34;。我怎么能用xpath做到这一点？
<li data-selectionkey="4004|240|" data-sku="9-0036031069" class="ws-variation-list-item kor-swatch-selected" data-variation-value="4004" data-selected="true" tabindex="0">