lvdao_v4/miniprogram/components/help/index.wxml

<view class="helpcon">
  <view class="h_header">
      <image src="{{g_cdn}}/images/teach_title.png" mode="heightFix" />
      <image bindtap="tapclose" class="close" src="{{g_cdn}}/images/cancel@2x.png" mode="heightFix" />
  </view>

    <swiper current="{{currentIdx}}" bindchange="swiperChange" class="sw" autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}">
      <block wx:for="{{background}}" wx:key="*this">
        <swiper-item>
          <view class="sw_item">
            <image src="{{g_cdn}}/images/teach_{{item.id}}.jpg" mode="aspectFit" />
          </view>
        </swiper-item>
      </block>
    </swiper>

    <view class="dots">
      <block wx:for="{{background}}" wx:key="*this">
        <text class="{{current.id==item.id?'active':''}}"></text>
      </block>
    </view>

    <view class="h_detail">
      <text>{{current.txt}}</text>
    </view>
</view>