wordPad-applet/miniprogram/component/tabBar/tabBar.wxml

<!--component/tabBar/tabBar.wxml-->
<view class="container" style="position: absolute; bottom: 0;left: 0;">
    <view class="tabbar">
        <view wx:for="{{tabItemJson}}" wx:key="index">
            <view class="tabbar_item" bindtap="bindTabItem" id="{{index}}">

                <image wx:if="{{currentTab==index}}" id="{{index}}" class="icon" src="{{item.selectedIcon}}"></image>
                <image wx:else id="{{index}}" class="icon" src="{{item.icon}}"></image>
                <view class="check_false_text {{currentTab==index?'check_true_text':''}}" id="{{index}}">{{item.title}}</view>
            </view>
        </view>
    </view>
</view>