update:添加领域事件

Domain/AggregateModel/LinkAggregate/Link.cs

@@ -1,4 +1,5 @@
 using Base62;
+using Domain.Events;
 using Domain.SeedWork;
 using System;
 using System.Collections.Generic;
@@ -40,6 +41,8 @@ namespace Domain.AggregateModel.LinkAggregate
             AppId = appId;
             Time = DateTime.Now;
             CalculateShortCode();
+
+            AddDomainEvent(new LinkCreatedDomainEvent(this));
         }
         /// <summary>
         /// 根据值计算短链字段