<!DOCTYPE html> <html> <body> <h1>Element 对象</h1> <h2>removeChild() 方法</h2> <p>点击“删除”,移除 ul 的所有子节点。</p> <button onclick="myFunction()">删除</button> <ul id="myList"> <li>Coffee</li> <li>Tea</li> <li>Milk</li> </ul> <script> function myFunction() { const list = document.getElementById("myList"); while (list.hasChildNodes()) { list.removeChild(list.firstChild); } } </script> </body> </html>