bootstrap - 模态框

首先要添加 js代码

$('#myModal').on('shown.bs.modal', function () {
  $('#myInput').focus()
})

---

<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">：data-target属性绑定模态框的id
  Launch demo modal
</button>

<div class="modal fade" tabindex="-1" role="dialog" id="myModal">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title">Modal title</h4>：标题
      </div>
      <div class="modal-body">：里面写内容
        <p>One fine body&hellip;</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->