schoolwisdoms-student-mp/pages/pianoList/pianoList.wxml

<view class="container">
  <view class="card-box">
    <view class="card-list" wx:for="{{list}}" wx:key="index" data-index="{{index}}" bindtap="getCard">
      <view class="card-img">
        <image mode="aspectFill" src="{{item.imgUrl ? item.imgUrl : 'https://file.schoolwisdoms.com/image/0e02f9fc-1d41-4551-a150-b1be8196b49d.jpg'}}" ></image>
      </view>
      <view class="card-name">{{item.name}}</view>
      <view class="card-price">￥{{item.money}}</view>
      <view class="card-days">有效期{{item.days}}天</view>
    </view>
  </view>
</view>