vue for 綁定事件

<div id="pro_list" v-for="item in pro_list">
    <div class="pro">
        <div><img src="../img/favicon.png"> <span>{{item.spin_times}}</span></div>
        <button @click="buySpins(item.spin_times,item.price)" class="btn btn-info"><b>￥</b><span>{{item.price}}</span></button>
    </div>
</div>