<picker bindchange="bindPickerChange" value="{{pickerIndex}}" range="{{seckillInfo.items}}" range-key="goodsStandardValueName">     <view class="picker">        <view wx:if="{{pickerIndex > -1}}">已选择：{{seckillInfo.items[pickerIndex].goodsStandardValueName}}</view>        <view wx:else>请选择规格</view>       </view>   </picker>

pickerIndex 默认-1

seckillInfo = {

items：[

{

goodsStandardValueName:‘十分士大夫大师傅是否近段时间,士大夫大师傅但是不付款节点设备’

}

]

}