单元未null的话不显示

subpages/mine/checkInRecord/checkInRecord.wxml

@@ -7,7 +7,7 @@
                     <view class="name font-bold">{{item.apartmentName}}</view>
                     <view class="status text-28" style="color:{{item.status === '1'?'#ee952f':item.status === '4'?'#1cc9cd':item.status === '5'?'#181c18':''}}">{{item.status === '1'?'已入住':item.status === '3'?'已过期':item.status === '4'?'已取消':item.status === '5'?'已退房':item.status === '6'?'已撤销资格':item.status === '7'?'审核不通过':''}}</view>
                 </view>
-                <view style="margin-bottom: 22rpx;">{{item.buildingName}}-{{item.unitName}}-{{item.houseName}}-{{item.roomType}}</view>
+                <view style="margin-bottom: 22rpx;">{{item.buildingName}}-{{item.unitName || ''}}-{{item.houseName}}-{{item.roomType}}</view>
                 <view class="date">{{item.inDate}} 至 {{item.outDate}}</view>
             </view>
         </view>