diff --git a/DM_Weight/Finger/FingerprintUtil.cs b/DM_Weight/Finger/FingerprintUtil.cs
index 0aae4d8..349ff39 100644
--- a/DM_Weight/Finger/FingerprintUtil.cs
+++ b/DM_Weight/Finger/FingerprintUtil.cs
@@ -32,10 +32,10 @@ namespace DM_Weight.Finger
         {
             _eventAggregator = eventAggregator;
             logger.Info($"进入构造器，开始连接指纹机");
-            Task.Run(() =>
-           {
+           // Task.Run(() =>
+           //{
                ConnectionMain();
-           });
+           //});
         }
 
         public void ConnectionMain()
diff --git a/DM_Weight/ViewModels/LoginWindowViewModel.cs b/DM_Weight/ViewModels/LoginWindowViewModel.cs
index 44f6087..3a293f4 100644
--- a/DM_Weight/ViewModels/LoginWindowViewModel.cs
+++ b/DM_Weight/ViewModels/LoginWindowViewModel.cs
@@ -114,12 +114,14 @@ namespace DM_Weight.ViewModels
         //    _regionManager = regionManager;
         //    _eventAggregator = eventAggregator;
         //}
-        public LoginWindowViewModel(IRegionManager regionManager, IEventAggregator eventAggregator, PortUtil portUtil)
+        public LoginWindowViewModel(IRegionManager regionManager, IEventAggregator eventAggregator, PortUtil portUtil, FingerprintUtil fingerprintUtil)
         {
-            //_fingerprintUtil = fingerprintUtil;
+            _fingerprintUtil = fingerprintUtil;
             _portUtil = portUtil;
             _regionManager = regionManager;
-            _eventAggregator = eventAggregator;
+            _eventAggregator = eventAggregator; 
+            FingerMsg = !_fingerprintUtil.bIsConnected;
+            _eventAggregator.GetEvent<FingerprintEvent>().Subscribe(LoginEvent);
         }
         private DelegateCommand? _loginCommand;
 
@@ -444,7 +446,7 @@ _exitCommand ??= new DelegateCommand(Exit);
         //接收导航传过来的参数  现在是在此处初始化了表格数据
         public void OnNavigatedTo(NavigationContext navigationContext)
         {
-            FingerMsg = false;// !_fingerprintUtil.bIsConnected;
+            FingerMsg =  !_fingerprintUtil.bIsConnected;
             _eventAggregator.GetEvent<FingerprintEvent>().Subscribe(LoginEvent);
         }