diff --git a/db/jtDB.db b/db/jtDB.db
index 1083177..78223e3 100644
Binary files a/db/jtDB.db and b/db/jtDB.db differ
diff --git a/widgets/main_window.py b/widgets/main_window.py
index 942005d..48fe46e 100644
--- a/widgets/main_window.py
+++ b/widgets/main_window.py
@@ -322,34 +322,28 @@ class MainWindow(MainWindowUI):
             
             if pallet_codes and len(pallet_codes) > 0:
                 # 添加托盘号到下拉框
-                for code in pallet_codes:
-                    self.tray_edit.addItem(code)
+                self.tray_edit.addItems(pallet_codes)
                 
                 # 如果有之前的选择，尝试恢复它
-                if current_text:
-                    index = self.tray_edit.findText(current_text)
-                    if index >= 0:
-                        self.tray_edit.setCurrentIndex(index)
+                index = self.tray_edit.findText(current_text)
+                if index != -1:
+                    self.tray_edit.setCurrentIndex(index)
+                else:
+                    self.tray_edit.setCurrentIndex(-1)
+                    self.tray_edit.setCurrentText("")
+                
                 logging.info(f"已加载托盘号，共 {len(pallet_codes)} 个")
             else:
-                # 如果没有托盘号，添加默认项
-                default_codes = ["托盘1", "托盘2", "托盘3", "托盘4", "托盘5", "托盘6"]
-                for code in default_codes:
-                    self.tray_edit.addItem(code)
-                logging.warning("未找到托盘号，使用默认值")
-                
-                # 尝试恢复之前的选择
-                if current_text:
-                    index = self.tray_edit.findText(current_text)
-                    if index >= 0:
-                        self.tray_edit.setCurrentIndex(index)
+                # 如果没有托盘号，则不添加任何项目，保持为空
+                logging.warning("未找到托盘号，托盘号列表将为空")
+                self.tray_edit.setCurrentText("")
+
+
         except Exception as e:
             logging.error(f"加载托盘号失败: {str(e)}")
-            # 如果加载失败，添加默认项
+            # 如果加载失败，确保下拉框为空
             self.tray_edit.clear()
-            default_codes = ["托盘1", "托盘2", "托盘3", "托盘4", "托盘5", "托盘6"]
-            for code in default_codes:
-                self.tray_edit.addItem(code)
+            self.tray_edit.setCurrentText("")
     
     def show_settings_page(self):
         """显示设置页面"""