小程序轮播图 竖向

<swiper wx:key="property" wx:if="{{banners.length}}" style="margin-top: {{menuButtonTop}}rpx" class="bannerSwiper"
            previous-margin="54rpx" next-margin='54rpx' autoplay="true" vertical="false"
            indicator-active-color='#fff' interval='3000' duration='500' bindchange='onChange' circular='true'>
        <block wx:key="property" wx:for="{{banners}}">
            <swiper-item>
                <image class="shown {{index === xindex?'imageBanner':'imageBanner_small'}}" data-index="{{index}}"
                       data-item="{{item}}" src="{{item.url}}"></image>
            </swiper-item>
        </block>
    </swiper>

vertical=“false”