LocalFlowEnvironment文件丢失，需要重写

NodeFlow/Model/Operation/ChangeParameterOperation.cs

@@ -0,0 +1,90 @@
+using Microsoft.CodeAnalysis;
+using Serein.Library.Api;
+using Serein.NodeFlow.Services;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.NodeFlow.Model.Operation
+{
+    internal class ChangeParameterOperation : OperationBase
+    {
+        public override string Theme => nameof(ChangeParameterOperation);
+
+        public string NodeGuid { get; set; }
+        public bool IsAdd{ get; set; }
+
+        public int ParamIndex { get; set; }
+
+
+        private IFlowNode nodeModel;
+
+
+        public override bool ValidationParameter()
+        {
+            if (!flowModelService.TryGetNodeModel(NodeGuid, out var nodeModel))
+            {
+                return false;
+            }
+            this.nodeModel = nodeModel;
+
+            var pds = nodeModel.MethodDetails.ParameterDetailss;
+            var parameterCount = pds.Length;
+            if (ParamIndex >= parameterCount)
+            {
+                return false; // 需要被添加的下标索引大于入参数组的长度
+            }
+            if (IsAdd)
+            {
+                if (pds[ParamIndex].IsParams == false)
+                {
+                    return false; // 对应的入参并非可选参数中的一部分
+                }
+            }
+            else
+            {
+
+            }
+            
+            return true;
+        }
+
+
+        public override bool Execute()
+        {
+            if (!ValidationParameter()) return false;
+
+            if (IsAdd)
+            {
+                if (nodeModel.MethodDetails.AddParamsArg(ParamIndex))
+                {
+                    return true;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+            else
+            {
+                if (nodeModel.MethodDetails.RemoveParamsArg(ParamIndex))
+                {
+                    return true;
+                }
+                else
+                {
+                    return true;
+                }
+            }
+        }
+
+        public override void ToInfo()
+        {
+            throw new NotImplementedException();
+        }
+
+        
+    }
+}