diff --git a/src/main/java/cn/zust/edu/cn/App.java b/src/main/java/cn/zust/edu/cn/App.java
index bf9c122443f372c99495cef0daf5d07e13abdff6..399cad13733c3aec0298c0bf0c0f860fb2452012 100644
--- a/src/main/java/cn/zust/edu/cn/App.java
+++ b/src/main/java/cn/zust/edu/cn/App.java
@@ -7,6 +7,15 @@ package cn.zust.edu.cn;
 public class App {
     public static void main(String[] args) {
         System.out.println("hello world!");
-
+        ShapeManager shapeManager=new ShapeManager();
+        Rectangle rect=new Rectangle(new Point(10,10),100,200);
+        Triangle tri=new Triangle(new Point(0,10),new Point(50,50),new Point(150,0));
+        Circle cir=new Circle(new Point(100,100),100);
+        shapeManager.addShape(rect);
+        shapeManager.addShape(tri);
+        shapeManager.addShape(cir);
+        shapeManager.drawShapes();
+        shapeManager.delShape(rect);
+        shapeManager.drawShapes();
     }
 }