​x
 
<!DOCTYPE html>
<html>
<body>
​
<h1>Element 对象</h1>
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<h2>insertAdjacentHTML() 方法</h2>
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<button onclick="myFunction()">插入</button>
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<p>单击“插入”可在标题后插入一个段落。</p>
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<h2 id="myH2">我的标题</h2>
​
<script>
function myFunction() {
  const h2 = document.getElementById("myH2");
  let html = "<p>我的新段落。</p>";
  h2.insertAdjacentHTML("afterend", html);
}
</script>
​
</body>
</html>
​