/*内层横向滚动列表*/
.rowItem {
    display: inline-block;
}
.scroll-x{
    white-space:nowrap;
    display:flex;
}

<scroll-view class="scroll-x" scroll-x="true" scroll-x>
        <view wx:for="{{pictures}}" class="rowItem">
            
            <image class="item-image" src="../../../image/icon_product.png" mode="aspectFill">
            </image>
        </view>
</scroll-view>