减少通信字段；通信添加比赛字段；

ViewModels/MainWindowViewModel.cs

@@ -199,7 +199,19 @@ namespace OnlineUserPool.ViewModels
 
         private static void SendMessage(Collection<HostModel> clients, List<MsgModel> msgModels)
         {
-            string jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(msgModels);
+            string jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(msgModels.Select(m=> new { 
+                m.RouteId,
+                m.MemberId,
+                m.Point,
+                m.IsCompleted,
+                m.exit,
+                m.Speed,
+                m.PreDistance,
+                m.EndDistance,
+                m.IsVirtual,//后面要把这个字段过滤掉
+                m.WeightKg,
+                m.Competitionid
+            }));
             var data = Encoding.ASCII.GetBytes(jsonString);
             foreach (var item in clients)
             {