LocalFlowEnvironment文件丢失，需要重写

NodeFlow/Model/Operation/SetConnectPriorityInvokeOperation.cs

@@ -0,0 +1,91 @@
+using Serein.Library;
+using Serein.Library.Api;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.NodeFlow.Model.Operation
+{
+
+    /// <summary>
+    /// 将调用顺序置为优先
+    /// </summary>
+    internal class SetConnectPriorityInvokeOperation : OperationBase
+    {
+        public override string Theme => nameof(SetConnectPriorityInvokeOperation);
+
+        public string FromNodeGuid { get; set; }
+        public string ToNodeGuid { get; set; }
+        public ConnectionInvokeType ConnectionType { get; set; }  
+
+        private IFlowNode FromNode;
+        private IFlowNode ToNode;
+        private int lastIdx = -1;
+
+        public override bool ValidationParameter()
+        {
+            if (ConnectionType == ConnectionInvokeType.None) 
+            { 
+                return false;
+            }
+            // 获取起始节点与目标节点
+            if (!flowModelService.TryGetNodeModel(FromNodeGuid, out var fromNode) || !flowModelService.TryGetNodeModel(ToNodeGuid, out var toNode))
+            {
+                return false;
+            }
+            if (fromNode is null || toNode is null) return false;
+
+            FromNode = fromNode;
+            ToNode = toNode;
+            return true;
+
+        }
+
+        /// <summary>
+        /// 成为首项
+        /// </summary>
+        public override bool Execute()
+        {
+            if(!ValidationParameter()) return false;
+
+            if (FromNode.SuccessorNodes.TryGetValue(ConnectionType, out var nodes))
+            {
+                var idx = nodes.IndexOf(ToNode);
+                if (idx > -1)
+                {
+                    lastIdx = idx;
+                    nodes.RemoveAt(idx);
+                    nodes.Insert(0, ToNode);
+                }
+            }
+            return true;
+        }
+
+        /// <summary>
+        /// 恢复原来的位置
+        /// </summary>
+        public override bool Undo()
+        {
+            if (FromNode.SuccessorNodes.TryGetValue(ConnectionType, out var nodes))
+            {
+                var idx = nodes.IndexOf(ToNode);
+                if (idx > -1)
+                {
+                    nodes.RemoveAt(idx);
+                    nodes.Insert(lastIdx, ToNode);
+                    lastIdx = 0;
+                }
+            }
+            return true;
+        }
+
+        public override void ToInfo()
+        {
+            throw new NotImplementedException();
+        }
+
+       
+    }
+}