HTML - 在线编辑器 - 蜜蜂教程

          <div>XPath 实例</div>
<div>&lt;div&gt; 的数量：<output></output></div>

<script>
var xpath = "//div";
var evaluator = new XPathEvaluator();
var expression = evaluator.createExpression("//div");
var result = expression.evaluate(document, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
document.querySelector("output").textContent = result.snapshotLength;
</script>

        