diff --git a/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar b/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar
index 4cb1594..248cf22 100644
Binary files a/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar and b/out/artifacts/MathSystemTogether_jar/MathSystemTogether.jar differ
diff --git a/src/main/java/com/example/mathsystemtogether/ExamController.java b/src/main/java/com/example/mathsystemtogether/ExamController.java
index 99c42c7..cdb5cb1 100644
--- a/src/main/java/com/example/mathsystemtogether/ExamController.java
+++ b/src/main/java/com/example/mathsystemtogether/ExamController.java
@@ -140,6 +140,12 @@ public class ExamController {
             registerStage.setTitle("数学考试系统 - 用户注册");
             registerStage.setScene(scene);
             registerStage.setResizable(false);
+            
+            // 获取注册控制器并设置原始登录界面引用
+            RegisterController registerController = loader.getController();
+            Stage currentStage = (Stage) loginStatusLabel.getScene().getWindow();
+            registerController.setOriginalLoginStage(currentStage);
+            
             registerStage.show();
 
         } catch (Exception e) {
diff --git a/src/main/java/com/example/mathsystemtogether/RegisterController.java b/src/main/java/com/example/mathsystemtogether/RegisterController.java
index b19416f..d0fd4d7 100644
--- a/src/main/java/com/example/mathsystemtogether/RegisterController.java
+++ b/src/main/java/com/example/mathsystemtogether/RegisterController.java
@@ -46,6 +46,9 @@ public class RegisterController {
     
     // 邮件服务
     private EmailService emailService;
+    
+    // 原始登录界面的引用
+    private Stage originalLoginStage;
 
     @FXML
     public void initialize() {
@@ -60,6 +63,14 @@ public class RegisterController {
             showStatus("⚠️ 邮件服务未配置，请检查mail.properties文件", true);
         }
     }
+    
+    /**
+     * 设置原始登录界面的引用
+     * @param originalStage 原始登录界面
+     */
+    public void setOriginalLoginStage(Stage originalStage) {
+        this.originalLoginStage = originalStage;
+    }
 
     private void setupLevelComboBox() {
         ObservableList<String> levels = FXCollections.observableArrayList("小学", "初中", "高中");
@@ -200,11 +211,16 @@ public class RegisterController {
     @FXML
     private void handleBackToLogin() {
         try {
-            // 关闭当前窗口
+            // 关闭当前注册窗口
             Stage currentStage = (Stage) backToLoginButton.getScene().getWindow();
             currentStage.close();
             
-            // 打开登录界面
+            // 关闭原始登录界面（如果存在）
+            if (originalLoginStage != null && originalLoginStage.isShowing()) {
+                originalLoginStage.close();
+            }
+            
+            // 打开新的登录界面
             FXMLLoader loader = new FXMLLoader(getClass().getResource("exam-view.fxml"));
             Scene scene = new Scene(loader.load(), 900, 900);
             Stage loginStage = new Stage();
diff --git a/user_data.txt b/user_data.txt
index 60626e8..9e72d97 100644
--- a/user_data.txt
+++ b/user_data.txt
@@ -1,3 +1,3 @@
 666|123456789|252436951@qq.com|小学|1760166999971
 
-wgll|Ymh123456|ymhlovesLQX@163.com|小学|1760257151837
+wgll|Ymh123456|ymhlovesLQX@163.com|小学|1760261535669