<navigator url="#" class="accessory my-card" wx:for="{{list}}" data-item="{{item}}" bindtap="checkFile">
    <view class="icon">
        <!-- <text class="iconfont icon-word" /> -->
        <image style="width: 58rpx; height: 58rpx;" mode="aspectFill" src="{{item.cover}}" />
    </view>
    <view class="explian">
        <view class="title line-1">{{item.document}}</view>
        <view class="time">{{item.createdate}}</view>
    </view>
    <van-button wx:if="{{butType=='商学院'}}" type="info" data-item="{{item}}" custom-class='v-but' data-type="{{item.fileType=='video'?'播放':'下载'}}" catchtap="{{item.fileType=='video'?'callback':'butClick'}}">{{item.fileType=='video'?'播放':'下载'}}</van-button>
    <van-button wx:else type="{{butType==='下载'||butType==='播放'?'info':'danger'}}" data-item="{{item}}" data-type="{{butType}}" custom-class='v-but' catchtap="butClick">{{butType}}</van-button>
</navigator>