小程序如何点击获取下标

Question

<view class="buy-course-box">

        <view class="buy-selects buy-card">
            <label class="course-label" wx:for="{{cardName}}" bindtap="setCard">
                <input type="radio" class="course-card-input"/>
                <view>{{item.name}}</view>
            </label>
            
        </view>
    </view>

我想点击取下标但是没有成功，应该怎么做

Answer 1

Carousel:function(event){&nbsp;&nbsp;&nbsp;&nbsp;var&nbsp;idx=event.target.dataset.index;&nbsp;&nbsp;&nbsp;&nbsp;this.setData({ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;indx:idx &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}) &nbsp;&nbsp;}就是这样，请采纳