<spanv-for="(it,idx) in item.urls"@click="down_file(it)"style="color:#515fe7;cursor:pointer;":key="'urls'+idx">{{helper.downloadFileFormatNew(it)}}、</span>
</span>
</template>
</div>
<divclass="bg":style="{top:(2*index+1)*42+'px'}"v-for="(item,index) in bg_num":key="'bg'+index"></div>