2.0

README.md

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-# SJ0
-

软1_张红卫_个人项目/doc/README.md

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+个人项目说明文档
+项目基本信息
+项目名称：软1_张红卫_个人项目
+项目类型：中小学数学卷子自动生成程序
+开发语言：Java
+开发环境：JDK 8+
+
+项目结构
+text
+软1_张红卫_个人项目/
+├── src/                    # 源代码目录
+│   └── Main.java          # 主程序入口文件
+├── doc/                   # 项目文档目录
+│   └── README.md          # 项目说明文档（本文档）
+├── exams/                 # 生成的题目文件目录（运行时自动创建）
+│   ├── 张三1/
+│   ├── 李四1/
+│   └── 王五1/
+└── README.md              # 项目根目录说明文档
+功能规格说明
+核心功能模块
+1. 用户认证系统
+预设账号：小学、初中、高中教师各3个账号
+
+认证方式：命令行用户名密码验证
+
+会话管理：登录状态保持，支持多次操作
+
+2. 题目生成引擎
+难度分级：小学、初中、高中三个难度级别
+
+题目特征：
+
+小学：基础四则运算（+、-、×、÷）
+
+初中：包含平方（^2）和开根号（sqrt()）运算
+
+高中：包含三角函数（sin、cos、tan）运算
+
+题目数量：10-30题范围限制
+
+3. 文件管理系统
+存储结构：按用户名分文件夹存储
+
+文件命名：年-月-日-时-分-秒.txt格式
+
+文件格式：每题有题号，题目间空一行
+
+4. 交互功能
+难度切换：支持登录状态下切换出题难度
+
+输入验证：完善的错误处理和输入验证
+
+退出机制：支持正常退出和重新登录
+
+
+核心类说明
+1. 用户管理模块
+User：用户实体类，存储用户名、密码、用户类型
+
+UserAuthenticator：用户认证管理，验证登录信息
+
+UserType：用户类型枚举（小学、初中、高中）
+
+2. 题目生成模块
+Question：题目实体类，包含题号和内容
+
+QuestionGenerator：题目生成器接口
+
+具体实现类：分别实现小学、初中、高中题目生成逻辑
+
+3. 系统管理模块
+SessionManager：会话管理，维护用户登录状态
+
+FileManager：文件操作管理，负责题目保存
+
+使用指南
+环境要求
+Java版本：JDK 8 或更高版本
+
+操作系统：支持UTF-8编码的系统
+
+内存要求：最低512MB可用内存
+
+编译运行步骤
+bash
+# 1. 编译程序
+javac -encoding UTF-8 Main.java
+
+# 2. 运行程序
+java  Main
+操作流程示例
+text
+=== 中小学数学卷子自动生成程序 ===
+请输入用户名：张三1
+请输入密码：123
+当前选择为小学出题
+
+准备生成小学数学题目，请输入题目数量(10-30)或命令：15
+题目已保存到：exams/张三1/2025-09-27-14-30-25.txt
+
+准备生成小学数学题目，请输入题目数量(10-30)或命令：切换为初中
+准备生成初中数学题目，请输入生成题目数量：20
+题目已保存到：exams/张三1/2025-09-27-14-31-10.txt
+测试方案
+功能测试用例
+测试场景	输入数据	预期结果	实际结果
+正确登录	张三1, 123	登录成功，显示小学出题	
+错误登录	张三1, 错误密码	提示登录失败	
+生成题目	输入15	生成15道题目并保存	
+切换难度	切换为初中	显示初中出题模式	
+边界测试	输入9或31	提示数量范围错误	
+性能测试
+响应时间：题目生成<1秒
+
+内存占用：运行期<100MB
+
+文件生成：30题文件大小<5KB
+
+
+代码结构
+单一职责：每个类只负责特定功能
+
+接口隔离：通过接口定义题目生成契约
+
+异常处理：完善的try-catch异常处理机制
+
+项目特点
+技术亮点
+多态应用：通过接口实现不同难度的题目生成策略
+
+文件管理：自动创建目录结构，时间戳文件命名
+
+编码处理：统一UTF-8编码，解决中文显示问题
+
+输入验证：完善的用户输入验证和错误提示
+
+用户体验
+操作简便：清晰的命令行交互界面
+
+提示友好：详细的中文操作提示
+
+容错性强：完善的异常处理和输入验证
+
+功能完整：覆盖需求文档所有核心功能
+
+版本信息
+版本历史
+v1.0 (2025-09-25)：初始框架
+
+v1.1 (2025-09-26)：初始版本，完成基本功能
+
+v1.2 (2026-09-27): 修复编码问题，优化用户体验
+
+依赖信息
+Java版本：JDK 8+
+
+外部库：无第三方依赖，纯Java实现
+
+开发日志
+关键节点
+2025-09-25：项目初始化，完成基础架构设计
+
+2025-09-26：实现用户认证和题目生成核心功能
+
+2025-09-26：完成文件保存和交互功能
+
+2025-09-27：优化编码问题，完善错误处理
+
+注意事项
+运行提示
+
+首次运行会自动创建exams目录结构
+
+生成的文件使用UTF-8编码，确保文本编辑器支持

软1_张红卫_个人项目/src/.idea/.gitignore

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+# 默认忽略的文件
+/shelf/
+/workspace.xml

软1_张红卫_个人项目/src/.idea/.name

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+Main.java

软1_张红卫_个人项目/src/.idea/artifacts/src_jar.xml

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+<component name="ArtifactManager">
+  <artifact type="jar" name="src:jar">
+    <output-path>$PROJECT_DIR$/out/artifacts/src_jar</output-path>
+    <root id="archive" name="src.jar">
+      <element id="directory" name="META-INF">
+        <element id="file-copy" path="$PROJECT_DIR$/META-INF/MANIFEST.MF" />
+      </element>
+    </root>
+  </artifact>
+</component>

软1_张红卫_个人项目/src/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="23" project-jdk-type="JavaSDK" />
+</project>

软1_张红卫_个人项目/src/.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/src.iml" filepath="$PROJECT_DIR$/.idea/src.iml" />
+    </modules>
+  </component>
+</project>

软1_张红卫_个人项目/src/.idea/src.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

软1_张红卫_个人项目/src/.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>

软1_张红卫_个人项目/src/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: jdk.jpackage.main.Main
+

软1_张红卫_个人项目/src/MathExam/Main.java

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+import java.util.*;
+import java.io.*;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+// 用户类型枚举
+enum UserType {
+    ELEMENTARY("小学"),
+    JUNIOR("初中"),
+    SENIOR("高中");
+    
+    private final String displayName;
+    
+    UserType(String displayName) {
+        this.displayName = displayName;
+    }
+    
+    public String getDisplayName() {
+        return displayName;
+    }
+    
+    public static UserType fromString(String type) {
+        for (UserType userType : values()) {
+            if (userType.getDisplayName().equals(type)) {
+                return userType;
+            }
+        }
+        return null;
+    }
+}
+
+// 用户类
+class User {
+    private String username;
+    private String password;
+    private UserType userType;
+    
+    public User(String username, String password, UserType userType) {
+        this.username = username;
+        this.password = password;
+        this.userType = userType;
+    }
+    
+    public String getUsername() { return username; }
+    public String getPassword() { return password; }
+    public UserType getUserType() { return userType; }
+}
+
+// 用户认证器
+class UserAuthenticator {
+    private static final Map<String, User> users = new HashMap<>();
+    
+    static {
+        // 使用英文用户名避免中文编码问题
+        users.put("张三1", new User("张三1", "123", UserType.ELEMENTARY));
+        users.put("张三2", new User("张三2", "123", UserType.ELEMENTARY));
+        users.put("张三3", new User("张三3", "123", UserType.ELEMENTARY));
+        
+        users.put("李四1", new User("李四1", "123", UserType.JUNIOR));
+        users.put("李四2", new User("李四2”", "123", UserType.JUNIOR));
+        users.put("李四3", new User("李四3", "123", UserType.JUNIOR));
+        
+        users.put("王五1", new User("王五1", "123", UserType.SENIOR));
+        users.put("王五2", new User("王五2", "123", UserType.SENIOR));
+        users.put("王五3", new User("王五3", "123", UserType.SENIOR));
+    }
+    
+    public User authenticate(String username, String password) {
+        User user = users.get(username);
+        if (user != null && user.getPassword().equals(password)) {
+            return user;
+        }
+        return null;
+    }
+}
+
+// 题目类
+class Question {
+    private int number;
+    private String content;
+    
+    public Question(int number, String content) {
+        this.number = number;
+        this.content = content;
+    }
+    
+    public int getNumber() { return number; }
+    public String getContent() { return content; }
+    
+    @Override
+    public String toString() {
+        return number + ". " + content;
+    }
+}
+
+// 题目生成器接口
+interface QuestionGenerator {
+    List<Question> generateQuestions(int count);
+    boolean isValidQuestionCount(int count);
+}
+
+// 小学题目生成器
+class ElementaryQuestionGenerator implements QuestionGenerator {
+    private Random random = new Random();
+    private String[] operators = {"+", "-", "×", "÷"};
+    
+    @Override
+    public List<Question> generateQuestions(int count) {
+        List<Question> questions = new ArrayList<>();
+        for (int i = 1; i <= count; i++) {
+            questions.add(new Question(i, generateQuestion()));
+        }
+        return questions;
+    }
+    
+    private String generateQuestion() {
+        int operandCount = random.nextInt(3) + 2; // 2-4个操作数
+        StringBuilder question = new StringBuilder();
+        
+        for (int i = 0; i < operandCount; i++) {
+            int num = random.nextInt(100) + 1;
+            question.append(num);
+            
+            if (i < operandCount - 1) {
+                String op = operators[random.nextInt(operators.length)];
+                question.append(" ").append(op).append(" ");
+            }
+        }
+        
+        return question.toString();
+    }
+    
+    @Override
+    public boolean isValidQuestionCount(int count) {
+        return count >= 10 && count <= 30 || count == -1;
+    }
+}
+
+// 初中题目生成器
+class JuniorQuestionGenerator implements QuestionGenerator {
+    private Random random = new Random();
+    private String[] operators = {"+", "-", "×", "÷"};
+    
+    @Override
+    public List<Question> generateQuestions(int count) {
+        List<Question> questions = new ArrayList<>();
+        for (int i = 1; i <= count; i++) {
+            questions.add(new Question(i, generateQuestion()));
+        }
+        return questions;
+    }
+    
+    private String generateQuestion() {
+        int operandCount = random.nextInt(3) + 2;
+        StringBuilder question = new StringBuilder();
+        
+        // 先添加普通运算
+        for (int i = 0; i < operandCount - 1; i++) {
+            int num = random.nextInt(100) + 1;
+            question.append(num);
+            
+            if (i < operandCount - 2) {
+                String op = operators[random.nextInt(operators.length)];
+                question.append(" ").append(op).append(" ");
+            }
+        }
+        
+        // 添加平方或开根号
+        int specialNum = random.nextInt(20) + 1;
+        if (random.nextBoolean()) {
+            question.append(" × ").append(specialNum).append("^2");
+        } else {
+            question.append(" × √").append(specialNum);  // 使用数学符号
+        }
+        
+        return question.toString();
+    }
+    
+    @Override
+    public boolean isValidQuestionCount(int count) {
+        return count >= 10 && count <= 30 || count == -1;
+    }
+}
+
+// 高中题目生成器
+class SeniorQuestionGenerator implements QuestionGenerator {
+    private Random random = new Random();
+    private String[] operators = {"+", "-", "×", "÷"};
+    private String[] trigFunctions = {"sin", "cos", "tan"};
+    
+    @Override
+    public List<Question> generateQuestions(int count) {
+        List<Question> questions = new ArrayList<>();
+        for (int i = 1; i <= count; i++) {
+            questions.add(new Question(i, generateQuestion()));
+        }
+        return questions;
+    }
+    
+    private String generateQuestion() {
+        int operandCount = random.nextInt(3) + 2;
+        StringBuilder question = new StringBuilder();
+        
+        // 先添加普通运算
+        for (int i = 0; i < operandCount - 1; i++) {
+            int num = random.nextInt(100) + 1;
+            question.append(num);
+            
+            if (i < operandCount - 2) {
+                String op = operators[random.nextInt(operators.length)];
+                question.append(" ").append(op).append(" ");
+            }
+        }
+        
+        // 添加三角函数
+        String trig = trigFunctions[random.nextInt(trigFunctions.length)];
+        int angle = random.nextInt(360);
+        question.append(" × ").append(trig).append("(").append(angle).append("°)");
+        
+        return question.toString();
+    }
+    
+    @Override
+    public boolean isValidQuestionCount(int count) {
+        return count >= 10 && count <= 30 || count == -1;
+    }
+}
+
+// 文件管理器
+class FileManager {
+    private static final String BASE_DIR = "exams/";
+    
+    public String saveQuestions(String username, List<Question> questions) throws IOException {
+        String userDir = BASE_DIR + username + "/";
+        File dir = new File(userDir);
+        if (!dir.exists()) {
+            dir.mkdirs();
+        }
+        
+        String timestamp = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
+        String filename = userDir + timestamp + ".txt";
+        
+        try (FileWriter writer = new FileWriter(filename)) {
+            for (int i = 0; i < questions.size(); i++) {
+                writer.write(questions.get(i).toString());
+                if (i < questions.size() - 1) {
+                    writer.write("\n\n");
+                }
+            }
+        }
+        
+        return filename;
+    }
+}
+
+// 会话管理器
+class SessionManager {
+    private User currentUser;
+    private UserType currentType;
+    private QuestionGenerator currentGenerator;
+    
+    public SessionManager() {}
+    
+    public void login(User user) {
+        this.currentUser = user;
+        this.currentType = user.getUserType();
+        updateGenerator();
+        System.out.println("当前选择为" + currentType.getDisplayName() + "出题");
+    }
+    
+    public void switchType(UserType newType) {
+        this.currentType = newType;
+        updateGenerator();
+        System.out.println("准备生成" + currentType.getDisplayName() + "数学题目，请输入生成题目数量");
+    }
+    
+    private void updateGenerator() {
+        switch (currentType) {
+            case ELEMENTARY:
+                currentGenerator = new ElementaryQuestionGenerator();
+                break;
+            case JUNIOR:
+                currentGenerator = new JuniorQuestionGenerator();
+                break;
+            case SENIOR:
+                currentGenerator = new SeniorQuestionGenerator();
+                break;
+        }
+    }
+    
+    public User getCurrentUser() { return currentUser; }
+    public UserType getCurrentType() { return currentType; }
+    public QuestionGenerator getCurrentGenerator() { return currentGenerator; }
+    public boolean isLoggedIn() { return currentUser != null; }
+    
+    public void logout() {
+        currentUser = null;
+        currentType = null;
+        currentGenerator = null;
+    }
+}
+
+// 主程序
+public class Main {
+    private static UserAuthenticator authenticator = new UserAuthenticator();
+    private static SessionManager sessionManager = new SessionManager();
+    private static FileManager fileManager = new FileManager();
+    private static Scanner scanner = new Scanner(System.in);
+    
+    public static void main(String[] args) {
+        System.out.println("=== 中小学数学卷子自动生成程序 ===");
+        System.out.println("请正确输入账号与密码：");
+        System.out.println();
+        
+        while (true) {
+            if (!sessionManager.isLoggedIn()) {
+                handleLogin();
+            } else {
+                handleLoggedInSession();
+            }
+        }
+    }
+    
+    private static void handleLogin() {
+        System.out.print("请输入用户名: ");
+        String username = scanner.nextLine().trim();
+        
+        if (username.equalsIgnoreCase("exit")) {
+            System.exit(0);
+        }
+        
+        System.out.print("请输入密码: ");
+        String password = scanner.nextLine().trim();
+        
+        User user = authenticator.authenticate(username, password);
+        if (user == null) {
+            System.out.println("登录失败！请重新输入。");
+            System.out.println("------------------------------");
+            return;
+        }
+        
+        sessionManager.login(user);
+    }
+    
+    private static void handleLoggedInSession() {
+        System.out.print("准备生成" + sessionManager.getCurrentType().getDisplayName() + 
+                        "数学题目，请输入题目数量(10-30)或命令(切换为小学/初中/高中): ");
+        String input = scanner.nextLine().trim();
+        
+        if (input.startsWith("切换为")) {
+            handleSwitchType(input);
+            return;
+        }
+        
+        if (input.equalsIgnoreCase("退出")) {
+            sessionManager.logout();
+            System.out.println("已退出当前用户");
+            return;
+        }
+        
+        try {
+            int questionCount = Integer.parseInt(input);
+            
+            if (questionCount == -1) {
+                sessionManager.logout();
+                System.out.println("已退出当前用户");
+                return;
+            }
+            
+            if (questionCount < 10 || questionCount > 30) {
+                System.out.println("题目数量应在10-30之间");
+                return;
+            }
+            
+            System.out.println("正在生成" + questionCount + "道题目...");
+            List<Question> questions = sessionManager.getCurrentGenerator().generateQuestions(questionCount);
+            String filename = fileManager.saveQuestions(
+                sessionManager.getCurrentUser().getUsername(), questions);
+            
+            System.out.println("题目已保存到: " + filename);
+            
+        } catch (NumberFormatException e) {
+            System.out.println("请输入有效的数字");
+        } catch (Exception e) {
+            System.out.println("错误: " + e.getMessage());
+        }
+    }
+    
+    private static void handleSwitchType(String input) {
+        String typeStr = input.substring(3).trim();
+        UserType newType = UserType.fromString(typeStr);
+        
+        if (newType == null) {
+            System.out.println("请输入小学、初中或高中");
+            return;
+        }
+        
+        sessionManager.switchType(newType);
+    }
+}

软1_张红卫_个人项目/src/MathExam/exams/teacher1/2025-09-27-13-00-57.txt

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+1. 60 / 30
+
+2. 68 * 69
+
+3. 88 + 14
+
+4. 6 - 31
+
+5. 86 + 100
+
+6. 75 / 69
+
+7. 85 + 82
+
+8. 23 - 52
+
+9. 28 * 10
+
+10. 98 + 68
+
+11. 63 - 16

软1_张红卫_个人项目/src/MathExam/exams/teacher5/2025-09-27-13-03-16.txt

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+1. 76 - 22 + 4^2
+
+2. 92 * 62 / 4^2
+
+3. 57 + 72 - sqrt(3)
+
+4. 51 / 100 - 10^2
+
+5. 52 / 69 - sqrt(3)
+
+6. 72 + 12 * sqrt(1)
+
+7. 82 / 6 - 4^2
+
+8. 51 / 12 * 10^2
+
+9. 96 * 73 * 7^2
+
+10. 33 * 75 * 1^2
+
+11. 92 - 15 * 3^2
+
+12. 23 + 50 + sqrt(4)
+
+13. 91 + 62 / 1^2
+
+14. 27 * 22 + 2^2
+
+15. 5 * 71 - sqrt(6)
+
+16. 20 * 51 * sqrt(9)
+
+17. 94 + 8 - 1^2
+
+18. 14 + 7 - sqrt(4)
+
+19. 46 + 21 / 9^2
+
+20. 24 * 71 / 2^2

软1_张红卫_个人项目/src/MathExam/exams/teacher9/2025-09-27-13-03-31.txt

@@ -0,0 +1,29 @@
+1. 70 * 2 * tan(222)
+
+2. 41 * 57 * sin(142)
+
+3. 75 * 89 * sin(68)
+
+4. 32 + 6 + sin(273)
+
+5. 76 * 80 * sin(117)
+
+6. 56 / 10 / sin(259)
+
+7. 22 + 58 + cos(216)
+
+8. 64 - 39 - cos(99)
+
+9. 56 - 57 - tan(36)
+
+10. 84 + 73 + sin(273)
+
+11. 14 * 54 * tan(323)
+
+12. 70 - 77 - tan(296)
+
+13. 38 + 29 + cos(65)
+
+14. 96 * 50 * sin(228)
+
+15. 21 - 25 - sin(70)

软1_张红卫_个人项目/src/MathExam/exams/张三1/2025-09-27-13-54-22.txt

@@ -0,0 +1,29 @@
+1. 14 - 59 × 66
+
+2. 80 + 51 - 61
+
+3. 25 ÷ 91 × 8
+
+4. 39 - 98 ÷ 31
+
+5. 92 × 24 × 29
+
+6. 58 - 99
+
+7. 77 + 63
+
+8. 79 × 15 - 45
+
+9. 83 ÷ 15
+
+10. 74 + 72 ÷ 87
+
+11. 1 ÷ 48 ÷ 58
+
+12. 50 + 19 × 95 ÷ 62
+
+13. 14 + 75 + 73 - 56
+
+14. 12 - 59 + 37 + 53
+
+15. 52 - 14

软1_张红卫_个人项目/src/MathExam/exams/张三1/2025-09-27-13-54-26.txt

@@ -0,0 +1,39 @@
+1. 43 - 63 × 36 - 16
+
+2. 79 + 32 - 46 + 26
+
+3. 82 - 42 - 48
+
+4. 93 + 90 + 26
+
+5. 29 × 17 × 28
+
+6. 62 + 87
+
+7. 8 × 78 × 8
+
+8. 44 + 90
+
+9. 48 + 98 × 75 ÷ 88
+
+10. 24 - 82
+
+11. 62 ÷ 83
+
+12. 52 - 17 - 27
+
+13. 55 + 92 ÷ 81 + 92
+
+14. 22 - 82
+
+15. 61 × 49
+
+16. 76 + 8 + 53
+
+17. 39 × 18
+
+18. 66 × 33 ÷ 8 - 13
+
+19. 62 + 36
+
+20. 71 × 30

软1_张红卫_个人项目/src/MathExam/exams/张三1/2025-09-27-14-01-39.txt

@@ -0,0 +1,39 @@
+1. 38 + 24
+
+2. 66 + 40 ÷ 99
+
+3. 91 + 41 ÷ 7 ÷ 45
+
+4. 15 ÷ 18 + 26 × 14
+
+5. 15 ÷ 4 × 88 + 29
+
+6. 41 + 9
+
+7. 54 - 80
+
+8. 21 - 87
+
+9. 43 - 70
+
+10. 81 + 95 - 55
+
+11. 68 ÷ 68
+
+12. 5 ÷ 10
+
+13. 2 ÷ 17 - 25
+
+14. 19 ÷ 49 + 68
+
+15. 34 ÷ 67 + 7
+
+16. 37 × 34 ÷ 56 + 59
+
+17. 89 ÷ 14 × 93
+
+18. 72 ÷ 30 + 77 + 30
+
+19. 40 ÷ 56
+
+20. 34 - 62 - 44

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-13-56-34.txt

@@ -0,0 +1,39 @@
+1. 46 × √13
+
+2. 70 × 17?
+
+3. 24 + 81 + 62 × √9
+
+4. 97 ÷ 98 × 15?
+
+5. 71 ÷ 75 × 5?
+
+6. 47 × √4
+
+7. 34 × √9
+
+8. 80 × √7
+
+9. 43 - 98 × 90 × 8?
+
+10. 33 + 42 × √13
+
+11. 39 × √6
+
+12. 33 × 15?
+
+13. 90 × √17
+
+14. 34 ÷ 62 + 25 × √10
+
+15. 99 × 5 × 1?
+
+16. 24 ÷ 85 - 25 × 4?
+
+17. 82 × 63 ÷ 43 × 7?
+
+18. 16 + 74 × 10?
+
+19. 6 - 99 × √4
+
+20. 97 + 53 × √1

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-02-06.txt

@@ -0,0 +1,21 @@
+1. 96 + 23 + 59 × √12
+
+2. 91 × 15?
+
+3. 16 ÷ 39 ÷ 93 × √11
+
+4. 87 × 1?
+
+5. 53 × 5?
+
+6. 55 + 9 × 15?
+
+7. 80 - 21 × √4
+
+8. 99 × 61 × 2?
+
+9. 52 - 15 × 13?
+
+10. 51 - 33 × 5?
+
+11. 57 × 19?

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-06-25.txt

@@ -0,0 +1,39 @@
+1. 62 × 6?
+
+2. 80 - 62 ÷ 88 × 15?
+
+3. 60 ÷ 17 × 16?
+
+4. 51 - 48 × 63 × √20
+
+5. 76 - 19 × 12?
+
+6. 82 × √17
+
+7. 97 ÷ 45 × 8?
+
+8. 79 × 80 + 37 × √11
+
+9. 10 × √2
+
+10. 91 × √10
+
+11. 50 ÷ 27 × √6
+
+12. 4 × 18?
+
+13. 76 ÷ 47 - 14 × √8
+
+14. 12 ÷ 25 × √20
+
+15. 72 - 26 + 37 × 16?
+
+16. 71 + 78 × √5
+
+17. 61 + 31 × 5?
+
+18. 85 × √13
+
+19. 71 + 45 × √9
+
+20. 11 ÷ 13 × √20

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-08-12.txt

@@ -0,0 +1,39 @@
+1. 79 × 43 - 36 × √19
+
+2. 79 × 69 × 1?
+
+3. 2 × 6?
+
+4. 24 × √6
+
+5. 21 × √1
+
+6. 87 + 69 × √9
+
+7. 97 × √13
+
+8. 91 ÷ 60 + 64 × 18?
+
+9. 81 × √16
+
+10. 19 + 69 × 8 × 3?
+
+11. 19 ÷ 76 × √9
+
+12. 16 + 76 × 12?
+
+13. 13 + 6 × 17?
+
+14. 11 + 19 - 16 × √15
+
+15. 38 × √7
+
+16. 20 × 30 × √7
+
+17. 77 + 22 × 26 × √13
+
+18. 26 + 6 - 87 × √9
+
+19. 80 × √2
+
+20. 85 × √18

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-09-51.txt

@@ -0,0 +1,39 @@
+1. 80 + 33 × 9?
+
+2. 91 × √6
+
+3. 32 × 25 ÷ 86 × 6?
+
+4. 98 + 59 × 2?
+
+5. 44 × 61 × 75 × √13
+
+6. 93 + 50 × √19
+
+7. 14 × 2?
+
+8. 55 × 5?
+
+9. 89 × 70 - 82 × 3?
+
+10. 36 - 98 + 73 × 6?
+
+11. 43 + 27 × 4?
+
+12. 77 × √13
+
+13. 24 × 6?
+
+14. 91 - 8 + 85 × 16?
+
+15. 18 ÷ 84 × 24 × 9?
+
+16. 51 × √12
+
+17. 22 + 37 + 14 × √4
+
+18. 74 - 70 + 28 × 14?
+
+19. 51 × 42 × 28 × 18?
+
+20. 55 × 26 × 100 × √1

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-25-27.txt

@@ -0,0 +1,39 @@
+1. 55 - 22 + 75 × √9
+
+2. 6 × 47 × 6?
+
+3. 74 × √16
+
+4. 52 ÷ 14 + 17 × 19?
+
+5. 4 - 8 × √20
+
+6. 53 × √17
+
+7. 1 - 68 × √8
+
+8. 62 × √8
+
+9. 55 × 20?
+
+10. 70 × 66 × 4?
+
+11. 73 × 63 × 14?
+
+12. 37 + 26 × 15?
+
+13. 24 × √2
+
+14. 88 × √15
+
+15. 52 × 93 × 12?
+
+16. 46 × 89 × 1?
+
+17. 42 + 15 × √8
+
+18. 67 + 18 × 67 × √1
+
+19. 33 × 53 × √6
+
+20. 41 - 31 × √12

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-26-43.txt

@@ -0,0 +1,39 @@
+1. 55 + 68 × √20
+
+2. 16 ÷ 49 - 68 × √17
+
+3. 28 ÷ 31 × 16?
+
+4. 68 × √17
+
+5. 16 × 5?
+
+6. 54 × √1
+
+7. 25 × √17
+
+8. 29 × 23 + 22 × √11
+
+9. 45 × 13 × 5?
+
+10. 74 + 77 × 64 × 2?
+
+11. 87 × √3
+
+12. 47 - 83 × 14?
+
+13. 66 + 55 × √8
+
+14. 73 + 18 × √11
+
+15. 16 + 32 × √17
+
+16. 61 × √10
+
+17. 90 + 21 + 31 × √4
+
+18. 33 × 10?
+
+19. 64 × 12?
+
+20. 76 × 2?

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-30-42.txt

@@ -0,0 +1,39 @@
+1. 35 - 70 × √19
+
+2. 12 × √16
+
+3. 45 × 16?
+
+4. 16 × √11
+
+5. 96 × 15?
+
+6. 39 ÷ 85 × 47 × 4?
+
+7. 42 + 90 × 17?
+
+8. 27 - 67 × 15?
+
+9. 3 × √18
+
+10. 44 × 59 × 13?
+
+11. 57 ÷ 67 × √11
+
+12. 55 + 8 × 1?
+
+13. 39 × √4
+
+14. 26 × 4?
+
+15. 100 × 90 + 100 × 19?
+
+16. 67 ÷ 32 ÷ 34 × √11
+
+17. 49 × 18 - 74 × √19
+
+18. 58 - 40 × 4?
+
+19. 21 ÷ 75 ÷ 98 × 6?
+
+20. 34 × 50 - 22 × 4?

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-37-35.txt

@@ -0,0 +1,39 @@
+1. 23 - 53 ÷ 82 × 19?
+
+2. 68 + 75 × 4?
+
+3. 52 ÷ 22 × √6
+
+4. 13 × √11
+
+5. 37 + 33 × 69 × √8
+
+6. 86 × 17 × 89 × √2
+
+7. 35 - 15 × 14?
+
+8. 44 × 3?
+
+9. 29 × 4?
+
+10. 84 × 6 × 10?
+
+11. 44 - 21 × √3
+
+12. 2 + 94 × √9
+
+13. 21 × √19
+
+14. 65 × 28 × 8 × 7?
+
+15. 42 + 99 ÷ 11 × √19
+
+16. 18 × √12
+
+17. 57 × 20?
+
+18. 67 + 31 × √4
+
+19. 65 × 5?
+
+20. 60 × 34 × 4?

软1_张红卫_个人项目/src/MathExam/exams/李四1/2025-09-27-14-43-57.txt

@@ -0,0 +1,39 @@
+1. 9 × 8^2
+
+2. 93 × 40 + 25 × √18
+
+3. 18 × √11
+
+4. 48 + 36 × √4
+
+5. 57 × 87 × 37 × √17
+
+6. 93 × 70 × √12
+
+7. 65 × 20^2
+
+8. 29 - 91 × 7^2
+
+9. 61 × 29 × 9^2
+
+10. 81 × √1
+
+11. 17 × 62 ÷ 46 × √3
+
+12. 75 ÷ 32 × 17 × √6
+
+13. 35 - 3 × 81 × 11^2
+
+14. 76 × 4^2
+
+15. 14 × √15
+
+16. 36 ÷ 49 × 46 × √19
+
+17. 34 × 10^2
+
+18. 13 × 64 × 3^2
+
+19. 43 + 82 × 61 × √6
+
+20. 72 - 5 × 18^2

软1_张红卫_个人项目/src/MathExam/exams/王五1/2025-09-27-14-02-23.txt

@@ -0,0 +1,31 @@
+1. 34 + 55 × 49 × cos(114°)
+
+2. 4 × tan(101°)
+
+3. 73 - 22 - 71 × cos(269°)
+
+4. 22 - 12 ÷ 3 × sin(179°)
+
+5. 32 ÷ 38 + 41 × tan(116°)
+
+6. 34 × cos(219°)
+
+7. 49 ÷ 58 ÷ 30 × sin(233°)
+
+8. 87 - 28 × tan(225°)
+
+9. 47 - 91 - 71 × tan(87°)
+
+10. 66 ÷ 43 ÷ 68 × tan(90°)
+
+11. 1 ÷ 57 - 45 × sin(5°)
+
+12. 82 - 47 × cos(152°)
+
+13. 2 + 47 × tan(268°)
+
+14. 22 × tan(39°)
+
+15. 1 × sin(306°)
+
+16. 72 × sin(293°)