diff --git a/data/users.json b/data/users.json
index d478b7e..2bf6bd3 100644
--- a/data/users.json
+++ b/data/users.json
@@ -1,8 +1,8 @@
 [ {
   "username" : "小鱼",
   "email" : "1280556515@qq.com",
-  "passwordHash" : "$2a$12$0.CsIN83oxG1vbZe6vNVte3JaxvX2JU2j0hyprng6meq9/N4e732m",
+  "passwordHash" : "$2a$12$fAWGM2CJSSiulyFbDWyRyefrBWr9emYrMdkD.Rw2LPKFaYQeYYW9K",
   "registrationDate" : [ 2025, 10, 8, 21, 0, 37, 863490500 ],
-  "verificationCode" : "963213",
+  "verificationCode" : "926911",
   "verified" : true
 } ]
\ No newline at end of file
diff --git a/src/main/java/mathlearning/service/EmailService.java b/src/main/java/mathlearning/service/EmailService.java
index 86f5b0d..cc9dcec 100644
--- a/src/main/java/mathlearning/service/EmailService.java
+++ b/src/main/java/mathlearning/service/EmailService.java
@@ -19,7 +19,7 @@ public class EmailService {
         this.auth = auth;
     }
 
-    public boolean sendVerificationCode(String toEmail, String verificationCode) {
+    public boolean sendVerificationCode(String toEmail, String verificationCode, int flag) {
         try {
             Properties props = new Properties();
             props.put("mail.smtp.host", host);
@@ -38,12 +38,11 @@ public class EmailService {
             message.setFrom(new InternetAddress(username));
             message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(toEmail));
             message.setSubject("数学学习软件 - 注册验证码");
+            String emailContent="";
+
+            if (flag == 1) emailContent = registerContent(verificationCode);
+            else if (flag == 2) emailContent = resetPasswordContent(verificationCode);
 
-            String emailContent = "尊敬的用户：\n\n" +
-                    "您的注册验证码是：" + verificationCode + "\n\n" +
-                    "该验证码有效期为10分钟。\n\n" +
-                    "如果您没有注册本软件，请忽略此邮件。\n\n" +
-                    "数学学习软件团队";
 
             message.setText(emailContent);
 
@@ -54,4 +53,20 @@ public class EmailService {
             return false;
         }
     }
+
+    public String registerContent(String verificationCode) {
+        return "尊敬的用户：\n\n" +
+                "您的注册验证码是：" + verificationCode + "\n\n" +
+                "该验证码有效期为10分钟。\n\n" +
+                "如果您没有注册本软件，请忽略此邮件。\n\n" +
+                "数学学习软件团队";
+    }
+
+    public String resetPasswordContent(String verificationCode) {
+        return "尊敬的用户：\n\n" +
+                "您的重置验证码是：" + verificationCode + "\n\n" +
+                "该验证码有效期为10分钟。\n\n" +
+                "如果您没有重置密码，请忽略此邮件。\n\n" +
+                "数学学习软件团队";
+    }
 }
diff --git a/src/main/java/mathlearning/ui/ChangeCodeFrame.java b/src/main/java/mathlearning/ui/ChangeCodeFrame.java
index 924f9ea..1255136 100644
--- a/src/main/java/mathlearning/ui/ChangeCodeFrame.java
+++ b/src/main/java/mathlearning/ui/ChangeCodeFrame.java
@@ -139,7 +139,7 @@ public class ChangeCodeFrame extends JFrame {
             verificationCode = String.valueOf((int)((Math.random() * 9 + 1) * 100000));
 
             // 发送验证码邮件
-            boolean sent = emailService.sendVerificationCode(email, verificationCode);
+            boolean sent = emailService.sendVerificationCode(email, verificationCode, 2);
 
             if (sent) {
                 // 在服务中保存验证码
diff --git a/src/main/java/mathlearning/ui/RegisterFrame.java b/src/main/java/mathlearning/ui/RegisterFrame.java
index ebc97c7..b5fc993 100644
--- a/src/main/java/mathlearning/ui/RegisterFrame.java
+++ b/src/main/java/mathlearning/ui/RegisterFrame.java
@@ -145,7 +145,7 @@ public class RegisterFrame extends JFrame{
             verificationCode = String.valueOf((int)((Math.random() * 9 + 1) * 100000));
 
             // 发送验证码邮件
-            boolean sent = emailService.sendVerificationCode(email, verificationCode);
+            boolean sent = emailService.sendVerificationCode(email, verificationCode, 1);
 
             if (sent) {
                 JOptionPane.showMessageDialog(RegisterFrame.this,