<swiper class="swiper" catchtap="onItemClick" autoplay="true" interval="3000" indicator-dots="true" duration="1000" circular="true">

      <block wx:for="{{dataArr}}" wx:key="index">

        <swiper-item>

          <!-- <image src="{{item.img}}" class="item_img"></image> -->

          <cover-image src="{{item.img}}" bindtap="onDetail"></cover-image>

        </swiper-item>

      </block>

    </swiper>