判断没有独立幢单元和独立层户时，将逻辑幢置于最下层

 <template>
 	<div class="lpbContent-wrap"  ref="lpbContentWrap">
 		<div class="lpbContent"  ref="lpbContent" v-loading='loading'>
-			<div class="ljz-wrap"  :style="{'width':ljzWidth+'px'}" v-show="lpbData.ljzs.length>0">
+			<div :class="(lpbData.cs.length == 0 && lpbData.zdys.length == 0) ? 'bottom40 ljz-wrap':'ljz-wrap'"  :style="{'width':ljzWidth+'px'}" v-show="lpbData.ljzs.length>0">
 				<!-- 循环逻辑幢数据 -->
 				<div class="ljz" ref="ljz" v-for="(ljzs,ljzIndex) in lpbData.ljzs" :key="ljzIndex">
 					<div  class="ljz-zdy-wrap" >
@@ -22,8 +22,8 @@
 							</div>
 						</div>
 						<!-- 循环逻辑幢下的层户 -->
-						<div class="ljz-ch">
-							<table  class="chTable" border="1" cellspacing="0" cellpadding="0"  v-show="ljzs.cs.length>0">
+						<div class="ljz-ch"   v-if="ljzs.cs.length>0">
+							<table  class="chTable" border="1" cellspacing="0" cellpadding="0">
 								<tr v-for="(cs) in ljzs.cs" :key="cs.bsm">
 									<!-- 显示层数 -->
 									<td class="floor">{{cs.sjc}}层</td>
@@ -156,7 +156,7 @@ export default {
 				let highest = this.$refs.zdy[0].offsetHeight;
 				this.zdyWidth -= 980;
 				this.$refs.zdy.forEach(item=>{
-					this.zdyWidth += item.offsetWidth + 20; 
+					this.zdyWidth += item.offsetWidth + 21; 
 					this.cHeight = item.offsetHeight > this.cHeight ? item.offsetHeight : this.cHeight;
 					highest = highest > item.offsetHeight ? highest:item.offsetHeight;
 				})
@@ -277,6 +277,13 @@ export default {
 					background-color: darkorange;
 				}
 			}
+			div:last-child{
+				margin-right: 0;
+			}
+		}
+		.bottom40{
+			position: absolute;
+			bottom: 40px;
 		}
 		.zdy-wrap {
 			height: auto;