如何让radio组件的子元素宽度撑满父布局？
<radio class="radio" wx:for-items="{{itemlist}}" wx:for-item="item" wx:key="itemId" checked="{{item.checked}}">
<!-- radio的子元素宽度无法撑满 -->
<view class="item">
<view class="item-mid">
<text class="item-service-title">{{item.itemName}}</text>
<text class="item-service-time">服务时间：{{item.serviceTime}}min</text>
</view>
<text class="item-service-price">¥900</text>
</view>
</radio>
</radio-group>
