代码如下，我看很多人都有提这个问题
<swiper current="{{currentNum}}" bindchange="pagechange"
class="swiper-content" circular="true" autoplay="{{autoplay}}"
indicator-dots="{{bannerList.length > 1 ? indicatorDots : false}}" style="width:100%;height:360rpx;" interval="{{interval}}" duration="{{duration}}">
  <block wx:if="{{bannerList && bannerList.length > 0}}" wx:for="{{bannerList}}" wx:key="{{index}}">
   <swiper-item class='tabs-item'>
               <view wx:if="{{item.positionType=='native'}}" data-index="{{index}}"
       data-psurl="{{item.positionUrl}}" @tap="{{!buttonClicked?'adventshareId':''}}" class="size-item">
                 <view class="form-button layout-column">
                   <image src="{{item.imageUrl || 'https://kjb-oss.oss-cn-shenzhen.aliyuncs.com/ul9zg740a645wxjfxddl.png'}}"
          class="swiper-image" data-index="{{index}}" binderror="swiperimageOnloadError"/>
                 </view>
               </view>
    <image wx:else src="{{item.imageUrl || 'https://kjb-oss.oss-cn-shenzhen.aliyuncs.com/ul9zg740a645wxjfxddl.png'}}" data-index="{{index}}"
        binderror="swiperimageOnloadError" class="swiper-image" data-psurl="{{item.positionUrl}}" @tap="{{!buttonClicked?'tapurl':''}}" />
   </swiper-item>
  </block>
</swiper>