微信小程序----gallery slider（图片轮播）组件

<scroll-view  scroll-y="true" style="height:200px"  class="page-body" bindscrolltolower="loadMore">
  <view class="swiper">
    <swiper class="swiper-box" indicator-dots="{{indicatorDots}}" vertical="{{vertical}}"
            autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}"
            indicator-color="#fff" indicator-active-color="red">
        <block wx:for-items="{{banner_url}}" wx:key="item.id">
            <navigator url="../blogList/blogList">
              <swiper-item>
                <block wx:if="{{item}}">
                  <image class="imgw" src="{{item.url}}"  mode="aspectFill"/>
                </block>
                <block wx:else>
                  <image src="../../images/default_pic.png" mode="aspectFill"></image>
                </block>
              </swiper-item>
            </navigator>
        </block>
    </swiper>
  </view>
</scroll-view> 

.imgw{width:100%;}

/**
 *页面的初始数据
 */
data: {
  banner_url: data.bannerList(),
  open: false,
  indicatorDots: true,//是否显示面板指示点
  autoplay: true,//是否开启自动切换
  interval: 3000,//自动切换时间间隔
  duration: 500//滑动动画时长
}