wxappb2b/GuangZuan/miniprogram/layouts/view/index.wxml

<view class="cat-view custom-class">
    <cat-button-back wx:if="{{showBackButton}}" fixed dark></cat-button-back>
    <view class="cat-view__header">
        <slot name="header"></slot>
    </view>
    <view class="cat-view__container">
        <cat-statusbar background-color="{{statusBarFixedStyle.backgroundColor}}" wx:if="{{navBarFixed}}"></cat-statusbar>
        <view class="cat-view__container-navbar {{navBarFixed ? 'fixed' : ''}}" style="opacity:{{navBarFixed ? navBarOpacity : 1}}">
            <slot name="navbar"></slot>
        </view>
        <cat-scroll-view class="cat-view__container-main" bind:scroll="onScroll">
            <slot></slot>
        </cat-scroll-view>
    </view>
    <view class="cat-view__footer">
        <slot name="footer"></slot>
    </view>
</view>