diff --git a/wood_detect/1.jpg b/wood_detect/1.jpg
old mode 100644
new mode 100755
diff --git a/wood_detect/wood_detect.py b/wood_detect/wood_detect.py
old mode 100644
new mode 100755
diff --git a/wood_detect/wood_detect.rknn b/wood_detect/wood_detect.rknn
old mode 100644
new mode 100755
diff --git a/wood_exist/1.png b/wood_exist/1.png
old mode 100644
new mode 100755
diff --git a/wood_exist/wood_exist.py b/wood_exist/wood_exist.py
old mode 100644
new mode 100755
index 9766600..e8d0d0c
--- a/wood_exist/wood_exist.py
+++ b/wood_exist/wood_exist.py
@@ -13,7 +13,7 @@ ROI RKNN 图像分类模块
 """
 
 import os
-from typing import Dict
+from typing import Dict,Union
 
 import cv2
 import numpy as np
@@ -37,7 +37,7 @@ CLASS_NAMES: Dict[int, str] = {
 # 全局 RKNN 实例（单例）
 # =====================================================
 
-_global_rknn: RKNNLite | None = None
+_global_rknn: Union[RKNNLite, None] = None
 
 
 def _init_rknn_model(model_path: str) -> RKNNLite:
diff --git a/wood_exist/wood_exist_cls.rknn b/wood_exist/wood_exist_cls.rknn
old mode 100644
new mode 100755
diff --git a/wood_ng/1.png b/wood_ng/1.png
old mode 100644
new mode 100755
diff --git a/wood_ng/wood_ng.py b/wood_ng/wood_ng.py
old mode 100644
new mode 100755
index a854fce..880e263
--- a/wood_ng/wood_ng.py
+++ b/wood_ng/wood_ng.py
@@ -13,7 +13,7 @@ ROI RKNN 图像分类模块
 """
 
 import os
-from typing import Dict
+from typing import Dict,Union
 
 import cv2
 import numpy as np
@@ -37,7 +37,7 @@ CLASS_NAMES: Dict[int, str] = {
 # 全局 RKNN 实例（单例）
 # =====================================================
 
-_global_rknn: RKNNLite | None = None
+_global_rknn: Union[RKNNLite, None] = None
 
 
 def _init_rknn_model(model_path: str) -> RKNNLite:
diff --git a/wood_ng/wood_ng_cls.rknn b/wood_ng/wood_ng_cls.rknn
old mode 100644
new mode 100755