edu-mini/pages/msg/msg.wxml

<view class="container">
    <edu-loadmore isEmpty="{{rows.length == 0}}" isRefresh="{{isRefresh}}" isLoading="{{isLoading}}"
                  isComplete="{{noMore}}">
        <edu-msg-card wx:for="{{rows}}" wx:key="index" msg="{{item}}" background="card-bg-unread"/>
    </edu-loadmore>
</view>