diff --git a/Wpf_AiSportsMicrospace/Common/SportOperate.cs b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
index e00d02b..936e7df 100644
--- a/Wpf_AiSportsMicrospace/Common/SportOperate.cs
+++ b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
@@ -27,6 +27,7 @@ namespace Wpf_AiSportsMicrospace.Common
         IPointTracker _rightTracker;
         IPointTracker _leftElbow;
         IPointTracker _rightElbow;
+        WebcamClient _webcamClient;
 
         public SportOperate()
         {
@@ -42,8 +43,8 @@ namespace Wpf_AiSportsMicrospace.Common
         }
         public WebcamClient CreateRTSP()
         {
-            WebcamClient webcamClient = WebcamClient.CreateRTSP("192.168.3.64", "admin", "yd708090", 554u);
-            return webcamClient;
+            _webcamClient = WebcamClient.CreateRTSP("192.168.3.64", "admin", "yd708090", 554u);
+            return _webcamClient;
         }
 
         /// <summary>