展示图代码template>div>divclass="fishbone":style="{height:`calc((${topChiderH}+${topChiderH})+33px)`}">divclass="top-box">divclass="flex-items"ref="topChilderen":style="{height:topChiderH}">templatev-for="(item,index)inleftArr">ulclass="itme-childeren"v-if="item.i%2":key="index":class="active>=item.i?'bo