初步完成变更新

DMS.Application/Interfaces/IDataCenterService.cs

@@ -1,6 +1,7 @@
 using System.Collections.Concurrent;
 using DMS.Application.DTOs;
 using DMS.Application.DTOs.Events;
+using DMS.Core.Models;
 
 namespace DMS.Application.Interfaces;
 
@@ -305,5 +306,13 @@ public interface IDataCenterService
     /// </summary>
     event EventHandler<DataChangedEventArgs> DataChanged;
 
+    /// <summary>
+    /// 当变量值发生变化时触发
+    /// </summary>
+    event EventHandler<VariableValueChangedEventArgs> VariableValueChanged;
+
+    void OnVariableValueChanged(VariableValueChangedEventArgs e);
+
+
     #endregion
 }