微信小程序—循环套循环中索引设置

<view class="other-comment" wx:for="{{datas}}" wx:key="{{index}}">
    <view class="other-comment-title">
        <view>
            <text>{{item.name}}</text>
        </view>
        <view class="other-comment-img" wx:for="{{item.data}}" wx:for-item="item2" wx:for-index="index2" wx:key="{{index2}}" data-id2="{{index}}" data-id="{{index2}}">
            <text>{{item2.name}}</text>
        </view>
    </view>
</view>