semantic ui的按钮组点击按钮无切换效果

[bulabean]

<div class="ui three buttons">
    <button class="ui button">One</button>
    <button class="ui button active">Two</button>
    <button class="ui button">Three</button>
</div>

按钮组的Semantic-UI官网效果链接

[wanghao]

  <script type="text/javascript">
    $('.buttons button').click(function() {$(this).addClass('active').siblings().removeClass('active')})
  </script>