npm run dev

npm install jquery --save-dev

npm install bootstrap --save-dev

import 'jquery/dist/jquery.min'
import 'bootstrap/dist/css/bootstrap.min.css'
import 'bootstrap/dist/js/bootstrap.min'

<div>
  <button class="btn btn-primary" data-toggle="modal" data-target="#mymodal-data" type="button">点击我</button>
  <div class="modal fade" id="mymodal-data" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true">
    <div class="modal-dialog">
      <div class="modal-content">
        <div class="modal-header">
          <h4 class="modal-title">模态弹出窗标题</h4>
          <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
        </div>
        <div class="modal-body">
          <p>模态弹出窗主体内容</p>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
          <button type="button" class="btn btn-primary">保存</button>
        </div>
      </div>
    </div>
  </div>
</div>