wxappb2b/GuangZuan/miniprogram/components/navbar/index.wxml

<view class="cat-navbar custom-class">
    <cat-statusbar custom-class="cat-navbar__statusbar"></cat-statusbar>
    <view class="cat-navbar__container">
        <view class="left">
            <view class="block">
                <cat-button-back wx:if="{{showBackButton}}"></cat-button-back>
                <slot name="left"></slot>
            </view>
        </view>
        <view class="center">
            <view class="block">
                <span wx:if="{{title}}">{{title}}</span>
                <slot wx:else></slot>
            </view>
        </view>
        <view class="right">
            <view class="block">
                <slot name="right"></slot>
            </view>
        </view>
    </view>
</view>
<view class="cat-navbar__footer">
    <slot name="footer"></slot>
</view>