程序代码：

<div class="theme-options">

 <div class="cart-title">口味</div>
   <ul>                                               
    <li class="sku-line selected" id="taste" data-id="1">原味</li>
    <li class="sku-line" id="taste" data-id="2">黑糖</li>
    <li class="sku-line" id="taste" data-id="3">蜂蜜</li>
   </ul>

 </div>
<div class="theme-options">
   <div class="cart-title">包装</div>
      <ul id="test">
       <li class="sku-line selected" data-id="1">单人份<i></i></li>
       <li class="sku-line" data-id="2">礼品包<i></i></li>
       <li class="sku-line" data-id="3">豪华包装<i></i></li>
       </ul>
     </div>
     
<li>
   <div class="clearfix tb-btn tb-btn-buy theme-login">
     <a id="LikBuy" title="点此按钮到下一步确认购买信息" href="#">立即购买</a>
    </div>
</li>
   <li>
     <div class="clearfix tb-btn tb-btn-basket theme-login">
      <a id="LikBasket" title="加入购物车"><i></i>加入购物车</a>
       </div>
   </li>

程序代码：

$('#LikBasket').on('click', function() {

var id =  $('.sku-line.selected').data('id');
console.log(id);
})