From 63e1ed4f7c420a24b72ddd42e26e5714a0c34099 Mon Sep 17 00:00:00 2001
From: pangyaxuan <wuhua.654321@qq.com>
Date: Sun, 29 Mar 2026 22:57:48 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=A0=E9=99=A4=20'W4'?=
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---
 W4 | 57 ---------------------------------------------------------
 1 file changed, 57 deletions(-)
 delete mode 100644 W4

diff --git a/W4 b/W4
deleted file mode 100644
index 9c8a8c2..0000000
--- a/W4
+++ /dev/null
@@ -1,57 +0,0 @@
-// 抽象图形类
-abstract class Shape {
-    public abstract double getArea();
-}
-
-// 圆形
-class Circle extends Shape {
-    private double r;
-
-    public Circle(double r) {
-        this.r = r;
-    }
-
-    @Override
-    public double getArea() {
-        return Math.PI * r * r;
-    }
-}
-
-// 矩形
-class Rectangle extends Shape {
-    private double width;
-    private double height;
-
-    public Rectangle(double width, double height) {
-        this.width = width;
-        this.height = height;
-    }
-
-    @Override
-    public double getArea() {
-        return width * height;
-    }
-}
-
-// 三角形
-class Triangle extends Shape {
-    private double base;
-    private double height;
-
-    public Triangle(double base, double height) {
-        this.base = base;
-        this.height = height;
-    }
-
-    @Override
-    public double getArea() {
-        return 0.5 * base * height;
-    }
-}
-
-// 工具类
-class ShapeUtil {
-    public static void printArea(Shape shape) {
-        System.out.println("面积：" + shape.getArea());
-    }
-}