使用dropdowns动态更改href属性的问题

<select id="dropdown">
  <option value="https://www.example.com/page1">选项1</option>
  <option value="https://www.example.com/page2">选项2</option>
  <option value="https://www.example.com/page3">选项3</option>
</select>
<a id="link" href="">点击跳转</a>

document.getElementById('dropdown').addEventListener('change', function() {
  var selectedValue = this.value;  // 获取选择的值
  document.getElementById('link').href = selectedValue;  // 修改链接地址
});