diff --git a/doc/README.md b/doc/README.md
new file mode 100644
index 0000000..4829c5d
--- /dev/null
+++ b/doc/README.md
@@ -0,0 +1,58 @@
+# 带UI的数学学习软件  
+
+## 项目结构  
+Math_learning  
+|——lib  依赖（jar包）  
+  |——javax.mail-1.6.2.jar  发送邮件相关  
+  |——activation-1.1.1.jar  javax.mail所需依赖  
+|——src  源代码目录  
+  |——Base  基础类包  
+    |——Email_settings.java  邮件发送服务配置  
+    |——Exam_result.java  考试结果类  
+    |——Question.java  题目类  
+    |——User.java  用户类  
+  |——Generator  题目生成器包  
+    |——G_ques.java  生成器接口  
+    |——Pri_g_ques.java  小学题目生成器  
+    |——Jun_g_ques.java  初中题目生成器  
+    |——Sen_g_ques.java  高中题目生成器  
+    |——Generate_paper.java  生成试卷  
+  |——Send_Email  邮件发送包  
+    |——Deal_i_code.java  管理验证码以及验证码校验  
+    |——Generate_i_code.java  产生验证码  
+    |——Send_email.java  发送邮件类  
+  |——Service  服务类包，供前端调用  
+    |——User_service.java  用户服务类，包括注册、登录、修改密码等  
+    |——Exam_service.java  考试服务类  
+    |——Deal_file.java  可选功能：保存试卷为文件  
+  |——View  前端类包  
+
+|——doc  说明文档  
+  |——README.md
+
+## 邮件发送说明  
+发件人信息通过配置文件存储，首次运行时会创建config/email.properties配置文件，并使用默认配置（乔毅凡的qq邮箱）  
+修改配置文件可更改发件人配置，如果要使用自己的邮箱，需要去设置中开启特定配置。  
+以QQ邮箱为例子：  
+1. 需要去自己的邮箱设置中找到POP3/IMAP/SMTP/Exchange/CardDAV 服务，选择开启，生成授权码。
+2. 查看QQ邮箱配置方法中的说明，看到“发送邮件服务器： smtp.qq.com，使用SSL，端口号465或587”，这就是发件服务器和使用的端口，以及使用SSL。
+3. 将上述信息修改到配置文件中。（发件服务器、端口、SSL在默认配置中已经为QQ邮箱的配置，修改邮箱和授权码即可）
+4. 其他邮箱配置方法具体见官方说明。
+
+## 用户信息
+用户信息保存在本地，用户/用户信息.txt(运行时会产生)
+
+## 运行环境
+可执行文件：Math_Learning.jar（依赖已经打包）  
+Windows  UTF-8编码  
+
+---
+软件2302  
+刘星宇 202326010226  
+毛承上 202326010227  
+乔毅凡 202326010228
+
+
+
+
+
diff --git a/src/Base/Email_settings.java b/src/Base/Email_settings.java
index 43e8fb1..ea57b1f 100644
--- a/src/Base/Email_settings.java
+++ b/src/Base/Email_settings.java
@@ -1,13 +1,86 @@
 package Base;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Properties;
+
 public class Email_settings {
-    public static final String SMTP_HOST = "smtp.qq.com";
-    // 邮箱服务器端口
-    public static final String SMTP_PORT = "587";
-    // 发件人邮箱
-    public static final String FROM_EMAIL = "835981889@qq.com";
-    // 发件人邮箱授权码
-    public static final String EMAIL_PASSWORD = "fpqfprqznbvdbcdf";
-    // 是否启用SSL
-    public static final boolean SSL_ENABLE = true;
+    private static final String CONFIG_FILE = "config/email.properties";
+    private static Properties properties;
+    private static long lastModified = 0;
+
+    static {
+        loadConfig();
+    }
+
+    private static void loadConfig() {
+        properties = new Properties();
+        setDefaultProperties();
+        File configFile = new File(CONFIG_FILE);
+        if (configFile.exists()) {
+            try (FileInputStream input = new FileInputStream(configFile)) {
+                properties.load(input);
+                lastModified = configFile.lastModified();
+            } catch (IOException e) {
+                System.err.println("加载邮箱配置文件失败，使用默认配置: " + e.getMessage());
+            }
+        } else {
+            createDefaultConfigFile();
+        }
+    }
+
+    private static void setDefaultProperties() {
+        properties.setProperty("smtp.host", "smtp.qq.com");
+        properties.setProperty("smtp.port", "587");
+        properties.setProperty("from.email", "835981889@qq.com");
+        properties.setProperty("email.password", "fpqfprqznbvdbcdf");
+        properties.setProperty("ssl.enable", "true");
+    }
+
+    private static void createDefaultConfigFile() {
+        File configDir = new File("config");
+        if (!configDir.exists()) {
+            configDir.mkdirs();
+        }
+
+        try (FileOutputStream output = new FileOutputStream(CONFIG_FILE)) {
+            properties.store(output, "Settings");
+        } catch (IOException e) {
+            System.err.println("创建默认配置文件失败: " + e.getMessage());
+        }
+    }
+
+    private static void checkForUpdates() {
+        File configFile = new File(CONFIG_FILE);
+        if (configFile.exists() && configFile.lastModified() > lastModified) {
+            loadConfig();
+        }
+    }
+
+    public static String getSmtpHost() {
+        checkForUpdates();
+        return properties.getProperty("smtp.host");
+    }
+
+    public static String getSmtpPort() {
+        checkForUpdates();
+        return properties.getProperty("smtp.port");
+    }
+
+    public static String getFromEmail() {
+        checkForUpdates();
+        return properties.getProperty("from.email");
+    }
+
+    public static String getEmailPassword() {
+        checkForUpdates();
+        return properties.getProperty("email.password");
+    }
+
+    public static boolean isSslEnable() {
+        checkForUpdates();
+        return Boolean.parseBoolean(properties.getProperty("ssl.enable"));
+    }
 }
diff --git a/src/Service/Generate_paper.java b/src/Generator/Generate_paper.java
similarity index 87%
rename from src/Service/Generate_paper.java
rename to src/Generator/Generate_paper.java
index 11188a8..ebf5c6d 100644
--- a/src/Service/Generate_paper.java
+++ b/src/Generator/Generate_paper.java
@@ -1,10 +1,7 @@
-package Service;
+package Generator;
 
 import Base.Question;
-import Generator.G_ques;
-import Generator.Jun_g_ques;
-import Generator.Pri_g_ques;
-import Generator.Sen_g_ques;
+import Service.Deal_file;
 
 import java.util.ArrayList;
 
@@ -40,8 +37,8 @@ public class Generate_paper {
             t.set_options();
             result.add(t);
         }
-        Deal_file d=new Deal_file();
-        d.savePaper(result,id);
+        /*Deal_file d=new Deal_file();
+        d.savePaper(result,id);*/
         return result;
     }
 
diff --git a/src/Send_Email/Send_email.java b/src/Send_Email/Send_email.java
index 5c63db7..809024f 100644
--- a/src/Send_Email/Send_email.java
+++ b/src/Send_Email/Send_email.java
@@ -59,23 +59,23 @@ public class Send_email {
     public static boolean send_email(String toEmail, String Code) {
         try {
             Properties props = new Properties();
-            props.put("mail.smtp.host", Email_settings.SMTP_HOST);
-            props.put("mail.smtp.port", Email_settings.SMTP_PORT);
+            props.put("mail.smtp.host", Email_settings.getSmtpHost());
+            props.put("mail.smtp.port", Email_settings.getSmtpPort());
             props.put("mail.smtp.auth", "true");
-            if (Email_settings.SSL_ENABLE) {
+            if (Email_settings.isSslEnable()) {
                 props.put("mail.smtp.starttls.enable", "true");
-                props.put("mail.smtp.ssl.trust", Email_settings.SMTP_HOST);
+                props.put("mail.smtp.ssl.trust", Email_settings.getSmtpHost());
             }
             // 创建会话
             Session session = Session.getInstance(props, new Authenticator() {
                 @Override
                 protected PasswordAuthentication getPasswordAuthentication() {
-                    return new PasswordAuthentication(Email_settings.FROM_EMAIL, Email_settings.EMAIL_PASSWORD);
+                    return new PasswordAuthentication(Email_settings.getFromEmail(), Email_settings.getEmailPassword());
                 }
             });
             // 创建邮件消息
             Message message = new MimeMessage(session);
-            message.setFrom(new InternetAddress(Email_settings.FROM_EMAIL));
+            message.setFrom(new InternetAddress(Email_settings.getFromEmail()));
             message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail));
             message.setSubject("注册验证码");
             // 邮件内容
diff --git a/src/Service/Exam_service.java b/src/Service/Exam_service.java
index 30b47da..dc84cf2 100644
--- a/src/Service/Exam_service.java
+++ b/src/Service/Exam_service.java
@@ -2,6 +2,7 @@ package Service;
 
 import Base.Exam_result;
 import Base.Question;
+import Generator.Generate_paper;
 
 import java.util.*;
 
@@ -17,7 +18,7 @@ public class Exam_service {
     public Exam_service(int num,String type,String id){
         this.id=id;
         this.type=type;
-        paper=Generate_paper.g_paper(num,type,id);
+        paper= Generate_paper.g_paper(num,type,id);
         now_index=0;
         this.start_time = new Date();
         this.user_answers = new HashMap<>();