<swiper indicator-dots="{{indicatorDots}}"

        autoplay="{{autoplay}}" vertical="{{vertical}}" interval="{{interval}}" duration="{{duration}}">

        <block wx:for="{{background}}" wx:key="*this">

          <swiper-item>

            <view class=“swiper-item {{item}}”></view>

          </swiper-item>

        </block>

      </swiper>