Third commit

src/Base/Exam_result.java

@@ -38,5 +38,4 @@ public class Exam_result {
     public String getCorrectRate() {
         return String.format("%.1f%%", (double) correct_answers / total_questions * 100);
     }
-
 }

src/Base/User.java

@@ -2,15 +2,17 @@ package Base;
 
 public class User {
     private String email;
+    private String id;
     private String password;
 
-
     public User(String email) {
         this.email = email;
     }
 
     public String get_email() { return email; }
     public String get_password() { return password; }
+    public String get_id() {return id;}
+    public void set_id(String id) {this.id=id;}
     public void set_password(String password) { this.password = password; }
 
     public static boolean check_password(String password) {

src/Service/Deal_file.java

@@ -0,0 +1,43 @@
+package Service;
+
+import Base.Question;
+
+import java.io.*;
+import java.text.SimpleDateFormat;
+import java.util.*;
+
+public class Deal_file {
+    private static final String BASE_DIR="试卷/";
+
+    public Deal_file() {
+        File baseDir = new File(BASE_DIR);
+        if (!baseDir.exists()) {
+            if (!baseDir.mkdirs())
+                System.out.println("目录创建失败！");
+        }
+    }
+
+    public void savePaper(ArrayList<Question> paper, String username) {
+        String userDirPath = BASE_DIR + username + "/";
+        File userDir = new File(userDirPath);
+        if (!userDir.exists()) {
+            if (!userDir.mkdirs()) {
+                System.out.println("目录创建失败！");
+                return;
+            }
+        }
+        String timestamp = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
+        String filePath = userDirPath + timestamp + ".txt";
+
+        try (PrintWriter writer = new PrintWriter(new FileWriter(filePath))) {
+            for (int i = 0; i < paper.size(); i++) {
+                writer.println(paper.get(i).toString());
+                if (i < paper.size() - 1) {
+                    writer.println();
+                }
+            }
+        } catch (IOException e) {
+            System.out.println("保存文件出错: " + e.getMessage());
+        }
+    }
+}

src/Service/Exam_service.java

@@ -6,6 +6,7 @@ import Base.Question;
 import java.util.*;
 
 public class Exam_service {
+    private String id;
     private String type;
     private ArrayList<Question> paper;
     private int now_index;
@@ -13,9 +14,10 @@ public class Exam_service {
     private Date end_time;
     private Map<Integer, Integer> user_answers;
 
-    Exam_service(int num,String type){
+    public Exam_service(int num,String type,String id){
+        this.id=id;
         this.type=type;
-        paper=Generate_paper.g_paper(num,type);
+        paper=Generate_paper.g_paper(num,type,id);
         now_index=0;
         this.start_time = new Date();
         this.user_answers = new HashMap<>();
@@ -25,6 +27,19 @@ public class Exam_service {
     public int get_now_index() { return now_index; }
     public Date get_start_time() { return start_time; }
     public Date get_end_time() { return end_time; }
+    public Map<Integer, Integer> get_user_answers() {return user_answers;}
+
+    public void set_now_index(int i){
+        if (i==1 && now_index<paper.size()-1){
+            now_index+=i;
+        }
+        else if (i==-1 && now_index>0){
+            now_index+=i;
+        }
+        else if (i==0){
+            now_index=0;
+        }
+    }
 
     public Question get_now_question() {
         if (now_index < paper.size()) {
@@ -68,6 +83,15 @@ public class Exam_service {
         return user_answers.get(question_index);
     }
 
+    public boolean check_finished(){
+        for (int i=0;i< paper.size();i++){
+            if (user_answers.get(i)==-1){
+                return false;
+            }
+        }
+        return true;
+    }
+
     public Exam_result calculate_result(){
         int correct = 0;
         List<Integer> wrong = new ArrayList<>();

src/Service/Generate_paper.java

@@ -7,10 +7,9 @@ import Generator.Pri_g_ques;
 import Generator.Sen_g_ques;
 
 import java.util.ArrayList;
-import java.util.Objects;
 
 public class Generate_paper {
-    public static ArrayList<Question> g_paper(int num,String type) {
+    public static ArrayList<Question> g_paper(int num,String type,String id) {
         ArrayList<Question> result = new ArrayList<>();
         G_ques generator;
         switch (type){
@@ -41,6 +40,8 @@ public class Generate_paper {
             t.set_options();
             result.add(t);
         }
+        Deal_file d=new Deal_file();
+        d.savePaper(result,id);
         return result;
     }
 

src/Service/User_service.java

@@ -35,13 +35,17 @@ public class User_service {
         }
     }
 
-    public String check_register(String email,String input_code,String pwd){
+    public String check_register(String email,String input_code,String pwd,String id){
         if (Deal_i_code.judge_code(email,input_code)){
             if (!User.check_password(pwd)){
                 return "密码长6-20位，至少包含大小写字母和数字";
             }
             User new_one=new User(email);
             new_one.set_password(pwd);
+            new_one.set_id(id);
+            if (find_user_i(id)!=null){
+                return "用户名重复";
+            }
             users.add(new_one);
             Deal_i_code.clean_all_codes();
             if (!save_users()){
@@ -54,8 +58,8 @@ public class User_service {
         }
     }
 
-    public String login(String email,String pwd){
+    public String login(String id,String pwd){
-        User u=find_user(email);
+        User u=find_user_i(id);
         if (u==null){
             return "请先注册";
         }
@@ -86,16 +90,16 @@ public class User_service {
         return "修改失败";
     }
 
-    public String logout(String email){
+    public String Unregister(String email){
         User user=find_user(email);
         if (user!=null) {
             if (users.remove(user)) {
-                if (!save_users()) {
+                if (save_users()) {
-                    return "注销成功";
+                    return "删除成功";
                 }
             }
         }
-        return "注销失败";
+        return "删除失败";
     }
 
     public User find_user(String email){
@@ -107,6 +111,15 @@ public class User_service {
         return null;
     }
 
+    public User find_user_i(String id){
+        for (User user : users) {
+            if (user.get_id().equals(id)) {
+                return user;
+            }
+        }
+        return null;
+    }
+
     private boolean save_users(){
         File baseDir = new File(base_dir);
         if (!baseDir.exists()) {
@@ -116,8 +129,11 @@ public class User_service {
         }
         String file_path=base_dir+"用户信息.txt";
         try (PrintWriter writer = new PrintWriter(new FileWriter(file_path))) {
+            if (users.isEmpty()){
+                return true;
+            }
             for (int i = 0; i < users.size(); i++) {
-                writer.println(users.get(i).get_email()+" "+users.get(i).get_password());
+                writer.println(users.get(i).get_email()+" "+users.get(i).get_password()+" "+users.get(i).get_id());
                 if (i < users.size() - 1) {
                     writer.println();
                 }
@@ -139,9 +155,10 @@ public class User_service {
                     if (!line.trim().isEmpty()) {
                         String l=line.trim();
                         String[] parts=l.split(" ");
-                        if (parts.length==2){
+                        if (parts.length==3){
                             User temp=new User(parts[0]);
                             temp.set_password(parts[1]);
+                            temp.set_id(parts[2]);
                             users.add(temp);
                         }
                     }