解决光电分离腔监听后端口占用的问题（完善电脑版）

ZTTMS_Manage_yibayiyi_KeepaliveTest3_GKJ_V1.1/ZTTMS_Manage_yibayiyi_20230320/PhotoelectricSeparationDataForm.cs

@@ -60,7 +60,7 @@ namespace ZTTMS_Manage_yibayiyi_20230320
 
             //g_ip = "41.244.68.61";
             //g_ip = "127.0.0.1";
-            g_port = 56000;
+            g_port = 55000;
 
             g_serialSyncTime = 0;
             g_serialDataVictory = 0;
@@ -800,7 +800,7 @@ namespace ZTTMS_Manage_yibayiyi_20230320
 
                     Console.WriteLine(Others.g_ipGDFL + "连接已断开！");
 
-                    if(Others.g_ipGDFL!=null)
+                    if(Others.g_ipGDFL!=null&& Others.g_dicSocketGDFL.ContainsKey(Others.g_ipGDFL))
                     {
                         Others.g_dicSocketGDFL[Others.g_ipGDFL].Close(100);
                         Others.g_dicSocketGDFL[Others.g_ipGDFL].Dispose();
@@ -1119,7 +1119,7 @@ namespace ZTTMS_Manage_yibayiyi_20230320
                     Console.WriteLine("GDFLReceiveError：" + ex.Message);
                     EveryDayLog.WriteErrorGDFL("GDFLReceiveError：" + ex.Message);
 
-                    if (Others.g_ipGDFL!=null)
+                    if (Others.g_ipGDFL != null && Others.g_dicSocketGDFL.ContainsKey(Others.g_ipGDFL))
                     {
                         Others.g_dicSocketGDFL[Others.g_ipGDFL].Close(100);
                         Others.g_dicSocketGDFL[Others.g_ipGDFL].Dispose();