flask 模态弹出框(flask 64)

<button type="button" class="btn btn-primary btn-sm" data-toggle="modal" data-target=".postLinkModal"> Share </button> <div class="modal fade postLinkModal" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <h5 class="modal-title" id="exampleModalLabel">Permalink</h5> <button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">×</span> </button> </div> <div class="modal-body"> <div class="form-group"> <input type="text" class="form-control" value="{{ url_for('.show_post', post_id=post.id, _external=True) }}" readonly> </div> </div> </div> </div> </div>