这对我很有效

document.getElementById('myModal').dispatchEvent(new KeyboardEvent("keydown",{
        keyCode: 27,
        which: 27,
        key: 'Escape',
        code: 'Escape'
     }));

也许这会有用。

<!-- HTML code for the Bootstrap modal -->
<div class="modal" id="myModal">
  <div class="modal-dialog">
    <div class="modal-content">
      <!-- Modal header, body, and footer content here -->
    </div>
  </div>
</div>

<!-- JavaScript code to listen for the escape key press -->
<script>
document.addEventListener('keydown', function(event) {
  if (event.key === "Escape") {
    var modal = document.getElementById("myModal");
    if ($(modal).data('bs.modal')._isShown) {
      $(modal).modal('hide');
    }
  }
});
</script>