diff --git a/ln_jq_app/android/app/build.gradle.kts b/ln_jq_app/android/app/build.gradle.kts
index 2539bdf..65f652d 100644
--- a/ln_jq_app/android/app/build.gradle.kts
+++ b/ln_jq_app/android/app/build.gradle.kts
@@ -37,8 +37,8 @@ android {
         // For more information, see: https://flutter.dev/to/review-gradle-config.
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
-        versionCode = 6
-        versionName = "1.2.3"
+        versionCode = 7
+        versionName = "1.2.4"
     }
 
     signingConfigs {
diff --git a/ln_jq_app/lib/pages/b_page/site/controller.dart b/ln_jq_app/lib/pages/b_page/site/controller.dart
index 30dc70b..c01d166 100644
--- a/ln_jq_app/lib/pages/b_page/site/controller.dart
+++ b/ln_jq_app/lib/pages/b_page/site/controller.dart
@@ -49,6 +49,7 @@ class ReservationModel {
   final String addStatusName;
   bool hasEdit;
   final String isEdit; // "1" 表示可以修改信息
+  final String gunNumber;
 
   // 新增附件相关字段
   final int isTruckAttachment; // 1为有证件数据 0为缺少
@@ -85,6 +86,7 @@ class ReservationModel {
     required this.isEdit,
     required this.drivingAttachments,
     required this.hydrogenationAttachments,
+    required this.gunNumber,
   });
 
   /// 工厂构造函数，用于从JSON创建ReservationModel实例
@@ -160,6 +162,7 @@ class ReservationModel {
       isEdit: json['isEdit']?.toString() ?? '0',
       drivingAttachments: drivingList.map((e) => e.toString()).toList(),
       hydrogenationAttachments: hydrogenationList.map((e) => e.toString()).toList(),
+      gunNumber: json['gunNumber']?.toString() ?? '',
     );
   }
 }
@@ -377,7 +380,7 @@ class SiteController extends GetxController with BaseControllerMixin {
         hasHydrogenationAttachment: false,
         isEdit: "0",
         drivingAttachments: [],
-        hydrogenationAttachments: [],
+        hydrogenationAttachments: [], gunNumber: '',
       );
     }
 
@@ -392,7 +395,17 @@ class SiteController extends GetxController with BaseControllerMixin {
       text: initialAmount.toStringAsFixed(3),
     );
 
-    final RxString selectedGun = (gasGunList.isNotEmpty ? gasGunList.first : '').obs;
+    //枪号回填
+    String initialGun = '';
+    if (item.gunNumber.isNotEmpty && gasGunList.contains(item.gunNumber)) {
+      initialGun = item.gunNumber; // 如果接口有返回且在列表中，则反显
+    } else if (gasGunList.isNotEmpty) {
+      initialGun = gasGunList.first; // 否则默认选第一个
+    }
+    final RxString selectedGun = initialGun.obs;
+
+
+
     final RxBool isOfflineChecked = false.obs;
 
     Get.dialog(
@@ -818,7 +831,7 @@ class SiteController extends GetxController with BaseControllerMixin {
       } else {
         var status = await Permission.photos.request();
         if (!status.isGranted) {
-          showErrorToast("请在系统设置中开启相册权限");
+          showErrorToast("请在系统设置中开启存储权限");
           return;
         }
       }
diff --git a/ln_jq_app/lib/pages/c_page/reservation/controller.dart b/ln_jq_app/lib/pages/c_page/reservation/controller.dart
index c8599cf..f0d670a 100644
--- a/ln_jq_app/lib/pages/c_page/reservation/controller.dart
+++ b/ln_jq_app/lib/pages/c_page/reservation/controller.dart
@@ -228,7 +228,7 @@ class C_ReservationController extends GetxController with BaseControllerMixin {
           hasDrivingAttachment: true,
           isEdit: '',
           drivingAttachments: [],
-          hydrogenationAttachments: [],
+          hydrogenationAttachments: [], gunNumber: '',
         );
 
         //打开预约列表
diff --git a/ln_jq_app/pubspec.yaml b/ln_jq_app/pubspec.yaml
index 6ef4730..3c56192 100644
--- a/ln_jq_app/pubspec.yaml
+++ b/ln_jq_app/pubspec.yaml
@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.2.3+6
+version: 1.2.4+7
 
 environment:
   sdk: ^3.9.0