如何使HTML列表可复制为标记

<ul id="myList">
  <li>Item 1</li>
  <li>Item 2</li>
  <li>Item 3</li>
</ul>

<script>
  var listItems = document.querySelectorAll('#myList li');
  listItems.forEach(function(item) {
    item.addEventListener('click', function() {
      copyToClipboard(item.innerHTML);
    });
  });

  function copyToClipboard(text) {
    var tempInput = document.createElement('input');
    tempInput.value = text;
    document.body.appendChild(tempInput);
    tempInput.select();
    document.execCommand('copy');
    document.body.removeChild(tempInput);
  }
</script>