diff --git a/wifi_manager.py b/wifi_manager.py
index ed92f9e..04a8133 100644
--- a/wifi_manager.py
+++ b/wifi_manager.py
@@ -83,7 +83,12 @@ def scan_wifi():
             wifi_list.append({'ssid': ssid, 'signal': strength})
             if len(wifi_list) == 15:
                 break
-            
+        
+        # save wifi_list to file
+        with open('wifi_list.txt', 'w') as f:
+            for wifi in wifi_list:
+                f.write(f"{wifi['ssid']},{wifi['signal']}\n")
+        
         return wifi_list
     except subprocess.CalledProcessError as e:
         print(f"Error scanning for Wi-Fi networks: {e}")
@@ -158,10 +163,6 @@ if __name__ == '__main__':
     print("----------------------------")
     wifi_list = scan_wifi()
     print("----------------------------")
-    # save wifi_list to file
-    with open('wifi_list.txt', 'w') as f:
-        for wifi in wifi_list:
-            f.write(f"{wifi['ssid']},{wifi['signal']}\n")
     
     restart_hotspot()
     # 启动 Flask 服务器