问题：使用vue加载图片变量，为了图片的自适应，需设置为背景图居中排布
<tr v-for="(item,index) in dataObj"><td class="video-msg" v-bind:id="item.videoid"><div class="videoImg fl" v-bind:style="{backgroundImage:'url(' + item.videopic + ')'}"></div></td><td v-if="item.videoisdel == 3">审核中</td><td>{
{item.publishdate}}</td><td>sss<button class="delete" @click='delConfirm(item.videoid)'>删除</button></td>
</tr>行内样式的写法：
- v-bind:style="{backgroundImage:'url(' + item.videopic + ')', backgroundRepeat:'no-repeat', backgroundPosition:'center center', backgroundSize: 'contain'}"
-
:style="{height: showList && carList.length > 0 ? '23rem' : '0'}"
