修改

ConsoleApp2/HostedServices/Abstractions/IDataSource.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp2.HostedServices.Abstractions
+{
+    public interface  IDataSource:IDisposable
+    {
+        public Task DoEnqueue(Action<DataRecord> action);
+    }
+}