循环多组radio的时候 怎么实现 只改变对应的那组

尝试了获取每组的index但是打印出来的 结果还是两个都在改变

<view class='w30'>宝贝估价：</view>

<radio-group bindchange="radioChange" class='flex-col check' data-index='{{index}}'>

<label wx:for='{{item.radioItems}}' class='mr-15' data-index="{{checked.id}}" wx:key='id' wx:for-item="checked">

<radio class="weui-check" value="{{checked.id}}" checked="{{checked.checked}}" />

<image src='{{checked.checked==true?"/images/check.png":"/images/checkno.png"}}'></image>

{{checked.name}}

</label>

</radio-group>

求解答