commit d013b3032066ed6f0a7cd271fceae6b1093a8d98
Author: LiZifan <1400341067@qq.com>
Date:   Tue Apr 28 10:49:15 2026 +0800

    1

diff --git a/w1/README.md b/w1/README.md
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+# 温度转换器 (Temperature Converter)
+
+这是一个简单的Java命令行程序，用于摄氏度（°C）与华氏度（°F）之间的相互转换。用户输入一个温度值和单位，程序自动进行转换并输出结果。
+
+## 功能特点
+
+- 支持摄氏度转华氏度
+- 支持华氏度转摄氏度
+- 友好的用户输入提示
+- 默认单位为摄氏度（当只输入数字时）
+- 精确到小数点后两位的输出
+
+## 环境要求
+
+- **JDK版本**: 25.0.2 或更高版本（代码兼容Java 8+，但已在JDK 25.0.2下测试）
+- **操作系统**: 任何支持Java的平台（Windows/Linux/macOS）
+
+## 如何运行
+
+1. **编译代码**  
+   打开终端（命令提示符），进入代码所在目录，执行：
+   ```bash
+   javac TemperatureConverter.java
+```
+
+1. 运行程序
+   编译成功后，执行：
+   ```bash
+   java TemperatureConverter
+   ```
+2. 按照提示输入
+   例如：
+   ```
+   请输入要转换的温度与单位（例如 36.6 C 或 97 F）：36.6 C
+   ```
+   输出：
+   ```
+   36.60 °C = 97.88 °F
+   ```
diff --git a/w1/TemperatureConverter.java b/w1/TemperatureConverter.java
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+++ b/w1/TemperatureConverter.java
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+import java.util.Scanner;
+
+/**
+ * 温度转换器示例程序（Java版）
+ * 支持摄氏度(C)与华氏度(F)之间互转
+ */
+public class TemperatureConverter {
+
+    /**
+     * 将摄氏度转换为华氏度。
+     *
+     * @param c 摄氏温度
+     * @return 对应的华氏温度
+     */
+    public static double celsiusToFahrenheit(double c) {
+        return c * 9.0 / 5.0 + 32.0;
+    }
+
+    /**
+     * 将华氏度转换为摄氏度。
+     *
+     * @param f 华氏温度
+     * @return 对应的摄氏温度
+     */
+    public static double fahrenheitToCelsius(double f) {
+        return (f - 32.0) * 5.0 / 9.0;
+    }
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        // 提示用户输入，格式示例："36.6 C" 或 "97 F"
+        System.out.print("请输入要转换的温度与单位（例如 36.6 C 或 97 F）：");
+        String s = scanner.nextLine().trim();
+
+        if (s.isEmpty()) {
+            System.out.println("输入为空，程序退出。");
+            return;
+        }
+
+        String[] parts = s.split("\\s+");
+        double value;
+        String unit;
+
+        try {
+            value = Double.parseDouble(parts[0]);
+            // 允许用户输入两个部分：数值与单位，若单位缺失则默认为 'C'
+            unit = (parts.length > 1) ? parts[1].toUpperCase() : "C";
+        } catch (NumberFormatException e) {
+            System.out.println("输入解析失败，请按示例输入数值与单位，例如：36.6 C");
+            return;
+        }
+
+        if (unit.startsWith("C")) {
+            // 从摄氏度转换为华氏度
+            double f = celsiusToFahrenheit(value);
+            System.out.printf("%.2f °C = %.2f °F%n", value, f);
+        } else if (unit.startsWith("F")) {
+            // 从华氏度转换为摄氏度
+            double c = fahrenheitToCelsius(value);
+            System.out.printf("%.2f °F = %.2f °C%n", value, c);
+        } else {
+            System.out.println("未知单位，请使用 C 或 F。");
+        }
+
+        scanner.close();
+    }
+}
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diff --git a/w1/协助记录.txt b/w1/协助记录.txt
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diff --git a/w1/屏幕截图 2026-03-09 101351.png b/w1/屏幕截图 2026-03-09 101351.png
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diff --git a/w2/w2.java b/w2/w2.java
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+++ b/w2/w2.java
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+public class w2{
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+        int validSum = 0; // 有效数据总和
+        int validCount = 0; // 有效数据个数
+
+        // 遍历传感器数据数组
+        for (int data : sensorData) {
+            // 规则3：致命错误（999），终止处理
+            if (data == 999) {
+                System.out.println("致命错误：传感器掉线，终止处理。");
+                break;
+            }
+
+            // 规则2：无效数据（0/负数/大于100且非999），跳过并告警
+            if (data <= 0 || data > 100) {
+                System.out.println("警告：发现越界数据[" + data + "]，已跳过。");
+                continue;
+            }
+
+            // 规则1：正常数据（1-100），累加求和并计数
+            validSum += data;
+            validCount++;
+        }
+
+        // 最终输出逻辑
+        if (validCount > 0) {
+            // 强制浮点除法，保留小数部分
+            double average = (double) validSum / validCount;
+            System.out.println("有效数据平均值为：" + average);
+        } else {
+            System.out.println("无有效数据。");
+        }
+    }
+}
diff --git a/w3/BankAccount.java b/w3/BankAccount.java
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+++ b/w3/BankAccount.java
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+
+public class BankAccount {
+    private final String accountNumber; 
+    private String ownerName;            
+    private double balance;             
+    public BankAccount(String accountNumber, String ownerName) {
+        this.accountNumber = accountNumber;
+        this.ownerName = ownerName;
+        this.balance = 0.0; 
+    }
+    public String getAccountNumber() {
+        return accountNumber;
+    }
+    public String getOwnerName() {
+        return ownerName;
+    }
+
+    public void setOwnerName(String ownerName) {
+        this.ownerName = ownerName;
+    }
+    public double getBalance() {
+        return balance;
+    }
+    public void deposit(double amount) {
+        if (amount > 0) {
+            balance += amount;
+            System.out.println("存款成功！当前余额：" + balance);
+        } else {
+            System.out.println("存款失败：存款金额必须大于0！");
+        }
+    }
+    public void withdraw(double amount) {
+        if (amount <= 0) {
+            System.out.println("取款失败：取款金额必须大于0！");
+        } else if (amount > balance) {
+            System.out.println("取款失败：余额不足！");
+        } else {
+            balance -= amount;
+            System.out.println("取款成功！当前余额：" + balance);
+        }
+    }
+    public static void main(String[] args) {
+        BankAccount account = new BankAccount("622202123456789", "张三");
+        System.out.println("账号：" + account.getAccountNumber());
+        System.out.println("户主：" + account.getOwnerName());
+        System.out.println("初始余额：" + account.getBalance());
+
+        account.deposit(500);    
+        account.withdraw(200);   
+        account.withdraw(400);   
+    }
+}
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diff --git a/w4/ShapeAreaCalculator.java b/w4/ShapeAreaCalculator.java
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+++ b/w4/ShapeAreaCalculator.java
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+package src.main.w5;
+// 抽象图形类
+abstract class Shape {
+    public abstract double getArea();
+}
+
+// 圆形类
+class Circle extends Shape {
+    private double radius;
+
+    public Circle(double radius) {
+        this.radius = radius;
+    }
+
+    @Override
+    public double getArea() {
+        return Math.PI * radius * radius;
+    }
+}
+
+// 矩形类
+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;
+    }
+}
+
+// 三角形类
+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;
+    }
+}
+
+// 图形工具类
+class ShapeUtil {
+    public static void printArea(Shape shape) {
+        System.out.printf("该图形的面积为：%.2f%n", shape.getArea());
+    }
+}
+
+// 主程序入口
+public class ShapeAreaCalculator {
+    public static void main(String[] args) {
+        // 创建不同图形对象
+        Shape circle = new Circle(2.0);
+        Shape rectangle = new Rectangle(3.0, 4.0);
+        Shape triangle = new Triangle(3.0, 4.0);
+
+        // 统一调用工具类打印面积
+        System.out.println("圆形：");
+        ShapeUtil.printArea(circle);
+
+        System.out.println("矩形：");
+        ShapeUtil.printArea(rectangle);
+
+        System.out.println("三角形：");
+        ShapeUtil.printArea(triangle);
+    }
+}
+
+
diff --git a/w4/屏幕截图 2026-03-29 185330.png b/w4/屏幕截图 2026-03-29 185330.png
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diff --git a/w4/类图 b/w4/类图
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+++ b/w4/类图
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+classDiagram
+    class Shape {
+        <<abstract>>
+        +getArea() double
+    }
+    class Circle {
+        -radius: double
+        +Circle(radius: double)
+        +getArea() double
+    }
+    class Rectangle {
+        -width: double
+        -height: double
+        +Rectangle(width: double, height: double)
+        +getArea() double
+    }
+    class Triangle {
+        -base: double
+        -height: double
+        +Triangle(base: double, height: double)
+        +getArea() double
+    }
+    class ShapeUtil {
+        +printArea(Shape shape) void
+    }
+    Shape <|-- Circle
+    Shape <|-- Rectangle
+    Shape <|-- Triangle
+    ShapeUtil ..> Shape
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diff --git a/w5/DuoTai.java b/w5/DuoTai.java
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index 0000000..e69de29
diff --git a/w6/AnimalTest.java b/w6/AnimalTest.java
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+++ b/w6/AnimalTest.java
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+package main.w6;
+
+// 1. 抽象动物类
+abstract class Animal {
+    // 抽象方法：动物叫声
+    public abstract void makeSound();
+}
+
+// 2. 游泳接口
+interface Swimmable {
+    void swim();
+}
+
+// 3. Dog类：继承Animal，实现Swimmable接口
+class Dog extends Animal implements Swimmable {
+    @Override
+    public void makeSound() {
+        System.out.println("小狗汪汪叫~");
+    }
+
+    @Override
+    public void swim() {
+        System.out.println("小狗会狗刨游泳");
+    }
+}
+
+// 4. Cat类：仅继承Animal，不实现Swimmable
+class Cat extends Animal {
+    @Override
+    public void makeSound() {
+        System.out.println("小猫喵喵叫~");
+    }
+}
+
+// 测试类
+public class AnimalTest {
+    public static void main(String[] args) {
+        // 多态调用：父类引用指向子类对象
+        Animal dog = new Dog();
+        Animal cat = new Cat();
+
+        // 调用叫声方法
+        System.out.println("=== 动物叫声 ===");
+        dog.makeSound();
+        cat.makeSound();
+
+        // 只有实现了Swimmable的对象才能调用swim()
+        System.out.println("\n=== 游泳能力 ===");
+        if (dog instanceof Swimmable) {
+            ((Swimmable) dog).swim();
+        }
+
+        // cat没有实现Swimmable，不能调用swim()
+        System.out.println("小猫不会游泳");
+    }
+}
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diff --git a/w7/Pair.java b/w7/Pair.java
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+++ b/w7/Pair.java
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+package w7;
+
+public class Pair<K,V> {
+    private K key;
+    private V value;
+    public Pair(K key,V value){
+        this.key=key;
+        this.value=value;
+    }
+    public K getKey(){
+        return key;
+    }
+    public V getValue(){
+        return value;
+    }
+    public static <K, V> Pair<V, K> swap(Pair<K, V> pair) {
+        return new Pair<>(pair.getValue(), pair.getKey());
+    }
+    
+}
+
diff --git a/w7/Test.java b/w7/Test.java
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+++ b/w7/Test.java
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+package w7;
+
+public class Test {
+    public static void main(String[] args) {
+        // 原始 Pair
+        Pair<String, Integer> original = new Pair<>("年龄", 18);
+        System.out.println("交换前：" + original);
+
+        // 调用静态 swap 方法交换键值
+        Pair<Integer, String> swapped = Pair.swap(original);
+        System.out.println("交换后：" + swapped);
+    }
+}
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