无法在Bootstrap 5中使用JavaScript打开模式

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta2/dist/js/bootstrap.bundle.min.js"></script>

<button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#myModal">
  打开模态框
</button>

<div class="modal fade" id="myModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <!-- 模态框的内容 -->
    </div>
  </div>
</div>

<div class="modal-content">
  <div class="modal-header">
    <h5 class="modal-title" id="exampleModalLabel">模态框标题</h5>
    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
  </div>
  <div class="modal-body">
    <p>模态框的内容</p>
  </div>
  <div class="modal-footer">
    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">关闭</button>
    <button type="button" class="btn btn-primary">保存</button>
  </div>
</div>