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鑑於下面的html片段,我如何才能選擇所有div的類a
或c
只有當他們有一個帶有class的子div時a1
php xpath只有具有類「a」的孩子才能選擇div「A」
分辯現在我有以下XPath查詢:
//div[@id='z']/div[@class='a' or @class='c']
<div id="z">
<div class="a"><!-- Should be selected -->
<div class="a1"></div>
</div>
<div class="a">
<div></div>
</div>
<div class="b">
<div></div>
</div>
<div class="a"><!-- Should be selected -->
<div class="a1"></div>
</div>
<div class="c"><!-- Should be selected -->
<div class="a1"></div>
</div>
</div>