将流程事件接口与流程运行环境解耦。

NodeFlow/Model/Operation/OperationBase.cs

@@ -0,0 +1,92 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.NodeFlow.Model.Operation
+{
+
+    class Test {
+
+        /// <summary>
+        /// 撤销栈
+        /// </summary>
+        private Stack<IOperation> undoStack = [];
+        /// <summary>
+        /// 重做栈
+        /// </summary>
+        private Stack<IOperation> redoStack = [];
+
+
+        /*
+          // 执行新命令时，将命令推入撤销栈，并清空重做栈
+          undoStack.Push(operation); 
+          redoStack.Clear();
+         */
+
+
+        /// <summary>
+        /// 撤销
+        /// </summary>
+        public void Undo()
+        {
+            if (undoStack.Count > 0)
+            {
+                var command = undoStack.Pop();
+                command.Undo();  // 执行撤销
+                redoStack.Push(command);  // 将撤销的命令推入重做栈
+            }
+        }
+
+        /// <summary>
+        /// 重做
+        /// </summary>
+        public void Redo()
+        {
+            if (redoStack.Count > 0)
+            {
+                var command = redoStack.Pop();
+                command.Execute(); 
+                undoStack.Push(command);  // 将重做的命令推入撤销栈
+            }
+        }
+
+    }
+
+
+    internal class OperationInfo
+    {
+
+    }
+
+    internal abstract class OperationBase : IOperation
+    {
+        /// <summary>
+        /// 操作的主题
+        /// </summary>
+        public required string Theme { get; set; }
+
+        public abstract void Execute();
+        public abstract void Undo();
+        public abstract void ToInfo();
+
+        protected OperationBase()
+        {
+            
+        }
+        protected OperationBase(OperationInfo info)
+        {
+            
+        }
+
+    }
+
+    internal interface IOperation
+    {
+        void Execute();  // 执行操作
+        void Undo();     // 撤销操作
+
+        
+    }
+}

NodeFlow/Model/SingleScriptNode.cs

@@ -227,12 +227,12 @@ namespace Serein.NodeFlow.Model
             };
 
             var envEvent = (IFlowEnvironmentEvent)context.Env;
-            envEvent.OnFlowRunComplete += onFlowStop; // 防止运行后台流程
+            envEvent.FlowRunComplete += onFlowStop; // 防止运行后台流程
 
             if (token.IsCancellationRequested) return null;
 
             var result = await ScriptInterpreter.InterpretAsync(scriptContext, mainNode); // 从入口节点执行
-            envEvent.OnFlowRunComplete -= onFlowStop;
+            envEvent.FlowRunComplete -= onFlowStop;
             return new FlowResult(this, context, result);
         }