diff --git a/src/app/working-area/working-area.component.ts b/src/app/working-area/working-area.component.ts
index a6a47e2..72950e7 100644
--- a/src/app/working-area/working-area.component.ts
+++ b/src/app/working-area/working-area.component.ts
@@ -516,8 +516,8 @@ export class WorkingAreaComponent extends EventEmitter implements OnInit, AfterV
     tempCar2.position.set(25, 50);
 
     // 开始绘制管线
-    // this.beginPaintPipeline();
-    this.beginPaintingArrows();
+    this.beginPaintPipeline();
+    // this.beginPaintingArrows();
   }
 
   /**