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

<view class="cat-tabbar">
    <view class="cat-tabbar__wrapper" style="{{fixed ? 'position: fixed;' : ''}}">
        <block wx:for="{{ tabs }}" wx:for-index="index" wx:key="index" wx:for-item="item">
            <view class="cat-tabbar__item" bindtap="changeTab">
                <!--判断是否图片图标-->
                <block wx:if="{{ item.icon }}">
                    <view class="cat-icon {{['cat-icon-' + item.name, active === index ? 'active' : '']}}">
                        <image class="image" src="{{ item.aicon }}.png" wx:if="{{ active === index }}" />
                        <image class="image" src="{{ item.icon }}.png" wx:else></image>
                        <text class="text">{{ item.label }}</text>
                    </view>
                </block>
                <block wx:else>
                    <view class="cat-icon {{['cat-icon-' + item.name, active === index ? 'active' : '']}}">
                        <text class="text">{{ item.label }}</text>
                    </view>
                </block>
            </view>
        </block>
    </view>
</view>