From 136b3bf3a809c87c53348c5fa88fa695fb5f6794 Mon Sep 17 00:00:00 2001
From: zhuyanshuo <3663541984@qq.com>
Date: Mon, 6 Apr 2026 21:40:36 +0800
Subject: [PATCH] =?UTF-8?q?w5=E5=AE=9E=E9=AA=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 w5/Computer.java  | 10 ++++++++++
 w5/Keyboard.java  | 11 +++++++++++
 w5/Mouse.java     | 11 +++++++++++
 w5/ShapeTest.java | 14 ++++++++++++++
 w5/USB.java       |  4 ++++
 w5/USBTest.java   | 13 +++++++++++++
 w5/shape.java     | 19 +++++++++++++++++++
 7 files changed, 82 insertions(+)
 create mode 100644 w5/Computer.java
 create mode 100644 w5/Keyboard.java
 create mode 100644 w5/Mouse.java
 create mode 100644 w5/ShapeTest.java
 create mode 100644 w5/USB.java
 create mode 100644 w5/USBTest.java
 create mode 100644 w5/shape.java

diff --git a/w5/Computer.java b/w5/Computer.java
new file mode 100644
index 0000000..360924f
--- /dev/null
+++ b/w5/Computer.java
@@ -0,0 +1,10 @@
+// Computer.java
+public class Computer {
+    public void useUSB(USB usbDevice) {
+        System.out.println("电脑检测到 USB 设备插入。");
+        usbDevice.open();
+        // 模拟使用过程
+        usbDevice.close();
+        System.out.println("USB 设备已移除。\n");
+    }
+}
\ No newline at end of file
diff --git a/w5/Keyboard.java b/w5/Keyboard.java
new file mode 100644
index 0000000..915faa2
--- /dev/null
+++ b/w5/Keyboard.java
@@ -0,0 +1,11 @@
+public class Keyboard implements USB {
+    @Override
+    public void open() {
+        System.out.println("键盘已开启，准备输入。");
+    }
+
+    @Override
+    public void close() {
+        System.out.println("键盘已关闭。");
+    }
+}
diff --git a/w5/Mouse.java b/w5/Mouse.java
new file mode 100644
index 0000000..e1778a4
--- /dev/null
+++ b/w5/Mouse.java
@@ -0,0 +1,11 @@
+public class Mouse implements USB {
+    @Override
+    public void open() {
+        System.out.println("鼠标已开启，准备移动。");
+    }
+
+    @Override
+    public void close() {
+        System.out.println("鼠标已关闭。");
+    }
+}
diff --git a/w5/ShapeTest.java b/w5/ShapeTest.java
new file mode 100644
index 0000000..01565b6
--- /dev/null
+++ b/w5/ShapeTest.java
@@ -0,0 +1,14 @@
+public class ShapeTest{
+    // 统一绘制方法
+    public static void drawShape(Shape s) {
+        s.draw();
+    }
+
+    public static void main(String[] args) {
+        Shape circle = new Circle();
+        Shape rectangle = new Rectangle();
+
+        drawShape(circle);    // 输出：绘制一个圆形 🟡
+        drawShape(rectangle); // 输出：绘制一个矩形 🟦
+    }
+}
\ No newline at end of file
diff --git a/w5/USB.java b/w5/USB.java
new file mode 100644
index 0000000..6e52e60
--- /dev/null
+++ b/w5/USB.java
@@ -0,0 +1,4 @@
+public interface USB {
+    void open();
+    void close();
+}
diff --git a/w5/USBTest.java b/w5/USBTest.java
new file mode 100644
index 0000000..6a93436
--- /dev/null
+++ b/w5/USBTest.java
@@ -0,0 +1,13 @@
+public class USBTest {
+    public static void main(String[] args) {
+        Computer computer = new Computer();
+
+        // 1. 插入鼠标
+        USB mouse = new Mouse();
+        computer.useUSB(mouse);
+
+        // 2. 插入键盘
+        USB keyboard = new Keyboard();
+        computer.useUSB(keyboard);
+    }
+}
\ No newline at end of file
diff --git a/w5/shape.java b/w5/shape.java
new file mode 100644
index 0000000..1a5dce2
--- /dev/null
+++ b/w5/shape.java
@@ -0,0 +1,19 @@
+abstract class Shape {
+    public abstract void draw();
+}
+
+// 2. 圆形类
+class Circle extends Shape {
+    @Override
+    public void draw() {
+        System.out.println("绘制一个圆形 🟡");
+    }
+}
+
+// 3. 矩形类
+class Rectangle extends Shape {
+    @Override
+    public void draw() {
+        System.out.println("绘制一个矩形 🟦");
+    }
+}
\ No newline at end of file