添加项目文件。

BaseFrame/PubEvent/OverlayEvent.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BaseFrame.PubEvent
+{
+    public class OverlayEvent : PubSubEvent<bool>
+    {
+    }
+}