<view wx:for="{{list}}">
  <image bindtap="preview" mode="aspectFill" data-url='{{item.img}}'  src="{{item.img}}"></image>
  <text>打卡时间：{{item.ctime}}</text>
</view>

<view wx:if="{{list.length<=0}}" style="text-align: center;">暂无打卡记录</view>
