From 713a5527fd1d8b4b3c6532886063249d4bbc1810 Mon Sep 17 00:00:00 2001
From: GaoGeng <3123557312@qq.com>
Date: Thu, 9 Apr 2026 13:42:37 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'W5'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 W5/Main.java    | 16 ++++++++++++++++
 W5/Person.java  |  3 +++
 W5/Student.java |  6 ++++++
 W5/Teacher.java |  6 ++++++
 4 files changed, 31 insertions(+)
 create mode 100644 W5/Main.java
 create mode 100644 W5/Person.java
 create mode 100644 W5/Student.java
 create mode 100644 W5/Teacher.java

diff --git a/W5/Main.java b/W5/Main.java
new file mode 100644
index 0000000..9b2753d
--- /dev/null
+++ b/W5/Main.java
@@ -0,0 +1,16 @@
+public class Main {
+    public static void main(String[] args) {
+        // 1. 创建一个 Person 数组，长度为 2
+        Person[] people = new Person[2];
+
+        // 2. 存放 Student 和 Teacher 对象 (向上转型)
+        people[0] = new Student();
+        people[1] = new Teacher();
+
+        // 3. 循环调用 answer() 方法，观察多态输出
+        System.out.println("--- 开始回答问题 ---");
+        for (int i = 0; i < people.length; i++) {
+            people[i].answer();
+        }
+    }
+}
diff --git a/W5/Person.java b/W5/Person.java
new file mode 100644
index 0000000..59b54f0
--- /dev/null
+++ b/W5/Person.java
@@ -0,0 +1,3 @@
+public abstract class Person {
+    public abstract void answer();
+}
\ No newline at end of file
diff --git a/W5/Student.java b/W5/Student.java
new file mode 100644
index 0000000..3f1f89b
--- /dev/null
+++ b/W5/Student.java
@@ -0,0 +1,6 @@
+public class Student extends Person {
+    @Override
+    public void answer() {
+        System.out.println("学生回答：这道题我会，选 C！");
+    }
+}
diff --git a/W5/Teacher.java b/W5/Teacher.java
new file mode 100644
index 0000000..e6c943f
--- /dev/null
+++ b/W5/Teacher.java
@@ -0,0 +1,6 @@
+public class Teacher extends Person {
+    @Override
+    public void answer() {
+        System.out.println("老师回答：没错，这位同学回答正确。");
+    }
+}
\ No newline at end of file