wx:key里面的值不能用{{}}包裹
https://developers.weixin.qq.com/miniprogram/dev/component/checkbox.html <view class="page-section">
<view class="page-section-title">推荐展示样式</view>
<view class="weui-cells weui-cells_after-title">
<checkbox-group bindchange="checkboxChange">
<label class="weui-cell weui-check__label" wx:for="{{items}}" wx:key="{{item.value}}">
<view class="weui-cell__hd">
<checkbox value="{{item.value}}" checked="{{item.checked}}"/>
</view>
<view class="weui-cell__bd">{{item.name}}</view>
</label>
</checkbox-group>
</view>
</view>
</view>
wx:key里面的值不能用{{}}包裹