fangliaoxiaochengxv/wxcomponents/vant/dist/sticky/index.wxml

<wxs src="../wxs/utils.wxs" module="utils"/>
<wxs src="./index.wxs" module="computed"/>

<view class="custom-class van-sticky" style="{{ computed.containerStyle({ fixed, height, zIndex }) }}">
    <view class="{{ utils.bem('sticky-wrap', { fixed }) }}"
          style="{{ computed.wrapStyle({ fixed, offsetTop, transform, zIndex }) }}">
        <slot/>
    </view>
</view>