diff --git a/src/app/babylon/view/building-window/building-window.ts b/src/app/babylon/view/building-window/building-window.ts
index d111c0a..df35cc6 100644
--- a/src/app/babylon/view/building-window/building-window.ts
+++ b/src/app/babylon/view/building-window/building-window.ts
@@ -210,13 +210,12 @@ export class BuildingWindow extends UIBase {
 
         this.buldingStatus = StatusManager.getStatus<BuildingStatus>(BuildingStatus);
 
-
         this.initBuildings();//创建每一个建筑buildingItem
 
-
         BuildingWindow.instance = this;
         this.three = PlanComponent.instance;
-        // this.three.getAllBuilding(this);
+        this.three.buildingUIItems = this.buildingUIItems
+        this.buildingUIItems.length? this.three.beforeOneBuildingID = this.three.buildingUIItems[0].getBuildingID() : null
 
     }