test1

.idea/misc.xml

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="MavenRunner">
-    <option name="jreName" value="17" />
-  </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>

src/Main.java

@@ -1,5 +0,0 @@
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello World!");
-    }
-}

src/mathpuzzle/Main.java

@@ -0,0 +1,9 @@
+package mathpuzzle;
+import mathpuzzle.controller.StartController;
+
+public class Main {
+    public static void main(String[] args) {
+        StartController startController = new StartController();
+        startController.start();
+    }
+}

src/mathpuzzle/controller/StartController.java

@@ -0,0 +1,54 @@
+package mathpuzzle.controller;
+import java.util.Scanner;
+import mathpuzzle.entity.User;
+import mathpuzzle.system.LogSystem;
+
+
+public class StartController {
+    public void start() {
+        LogSystem logSystem = new LogSystem();
+        logSystem.userHashMapInit();
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            User user = logSystem.login();
+            if (user == null) {
+                continue;
+            }
+            while (true) {
+                System.out.println("准备生成 " + user.getLevel() + "数学题目，请输入生成题目数量（输入-1将退出当前用户，重新登录）：");
+                String input = scanner.nextLine();
+                try {
+                    if ("-1".equals(input)) {
+                        System.out.println("退出当前用户");
+                        break;
+                    }
+                    int count = Integer.parseInt(input);
+                    if (count < 10 || count > 30) {
+                        System.out.println("题目数量必须在10-30之间！");
+                        continue;
+                    }
+                    //handleQuestionGeneration(user, count);
+                } catch (NumberFormatException e) {
+                    handleLevelSwitch(user, input);
+                }
+
+
+            }
+
+        }
+    }
+    private void handleLevelSwitch(User user, String input) {
+        if (input.startsWith("切换为")) {
+            String newLevel = input.substring(3);
+            if ("小学".equals(newLevel) || "初中".equals(newLevel) || "高中".equals(newLevel)) {
+                user.setLevel(newLevel);
+            } else {
+                System.out.println("请输入小学、初中和高中三个选项中的一个");
+            }
+        } else {
+            System.out.println("无效输入。请输入题目数量或'切换为 XX'指令。");
+
+
+        }
+    }
+}

src/mathpuzzle/entity/User.java

@@ -0,0 +1,25 @@
+package mathpuzzle.entity;
+
+public class User {
+    private String name;
+    private String password;
+    private String level;
+    public User(String name, String password, String level) {
+        this.name = name;
+        this.password = password;
+        this.level = level;
+    }
+    public String getName() {
+        return name;
+    }
+    public String getPassword() {
+        return password;
+    }
+    public String getLevel() {
+        return level;
+    }
+
+    public void setLevel(String newLevel) {
+        level = newLevel;
+    }
+}

src/mathpuzzle/system/LogSystem.java

@@ -0,0 +1,50 @@
+package mathpuzzle.system;
+import mathpuzzle.entity.User;
+import java.util.HashMap;
+import java.util.Scanner;
+
+public class LogSystem {
+    private HashMap<String, User> userHashMap = new HashMap<String, User>();
+    public void userHashMapInit() {
+        // 小学
+        userHashMap.put("张三1", new User("张三 1", "123", "小学"));
+        userHashMap.put("张三2", new User("张三 2", "123", "小学"));
+        userHashMap.put("张三3", new User("张三 3", "123", "小学"));
+        // 初中
+        userHashMap.put("李四1", new User("李四 1", "123", "初中"));
+        userHashMap.put("李四2", new User("李四 2", "123", "初中"));
+        userHashMap.put("李四3", new User("李四 3", "123", "初中"));
+        // 高中
+        userHashMap.put("王五1", new User("王五 1", "123", "高中"));
+        userHashMap.put("王五2", new User("王五 2", "123", "高中"));
+        userHashMap.put("王五3", new User("王五 3", "123", "高中"));
+    }
+
+    public User login() {
+        System.out.println("请输入用户名和密码，两者之间用空格隔开");
+        while(true) {
+            Scanner scanner = new Scanner(System.in);
+            String[] info = scanner.nextLine().split(" ");
+            if(info.length != 2) {
+                System.out.println("请输入正确格式");
+                continue;
+            } else {
+                String name = info[0];
+                String password = info[1];
+                User user = userHashMap.get(name);
+                if (user == null) {
+                    System.out.println("输入正确的用户名、密码");
+                    continue;
+                }
+                else if (!user.getPassword().equals(password)) {
+                    System.out.println("输入正确的用户名、密码");
+                    continue;
+                }
+                else {
+                    System.out.println("登录成功");
+                    return user;
+                }
+            }
+        }
+    }
+}