新了复制节点粘贴节点的功能（选择需要复制的节点，Ctrl+C、Ctrl+V），以Json文本形式传递数据，所以可以跨进程复制粘贴

Library/Api/IFlowEnvironment.cs

@@ -802,6 +802,14 @@ namespace Serein.Library.Api
                                                  JunctionType toNodeJunctionType,
                                                  ConnectionArgSourceType argSourceType,
                                                  int argIndex);
+
+        /// <summary>
+        /// 从节点信息集合批量加载节点控件
+        /// </summary>
+        /// <param name="List<NodeInfo>">节点集合信息</param>
+        /// <returns></returns>
+        Task LoadNodeInfosAsync(List<NodeInfo> nodeInfos);
+
         /// <summary>
         /// 创建节点/区域/基础控件
         /// </summary>
@@ -810,6 +818,9 @@ namespace Serein.Library.Api
         /// <param name="methodDetailsInfo">节点绑定的方法说明</param>
         Task<NodeInfo> CreateNodeAsync(NodeControlType nodeType, PositionOfUI position, MethodDetailsInfo methodDetailsInfo = null);
 
+
+
+
         /// <summary>
         /// 移除两个节点之间的方法调用关系
         /// </summary>

NodeFlow/Env/FlowEnvironment.cs

@@ -615,8 +615,10 @@ namespace Serein.NodeFlow.Env
                 {
                     ordinaryNodes.Add((nodeModel, nodeInfo.Position));
                 }
-                
             }
+
+
+
             // 加载区域子项
             foreach ((NodeModelBase region, string[] childNodeGuids) item in regionChildNodes)
             {
@@ -889,6 +891,99 @@ namespace Serein.NodeFlow.Env
             //}
         }
 
+        /// <summary>
+        /// 从节点信息集合批量加载节点控件
+        /// </summary>
+        /// <param name="List<NodeInfo>">节点信息</param>
+        /// <returns></returns>
+        public Task LoadNodeInfosAsync(List<NodeInfo> nodeInfos)
+        {
+            List<(NodeModelBase, string[])> regionChildNodes = new List<(NodeModelBase, string[])>();
+            List<(NodeModelBase, PositionOfUI)> ordinaryNodes = new List<(NodeModelBase, PositionOfUI)>();
+            // 加载节点
+            foreach (NodeInfo? nodeInfo in nodeInfos)
+            {
+                NodeControlType controlType = FlowFunc.GetNodeControlType(nodeInfo);
+                if (controlType == NodeControlType.None)
+                {
+                    continue;
+                }
+                MethodDetails? methodDetails = null;
+
+                if (controlType.IsBaseNode())
+                {
+                    // 加载基础节点
+                    methodDetails = new MethodDetails();
+                }
+                else
+                {
+                    // 加载方法节点
+                    if (string.IsNullOrEmpty(nodeInfo.AssemblyName) && string.IsNullOrEmpty(nodeInfo.MethodName))
+                    {
+                        continue;
+                    }
+                    FlowLibraryManagement.TryGetMethodDetails(nodeInfo.AssemblyName, nodeInfo.MethodName, out methodDetails); // 加载项目时尝试获取方法信息
+                }
+
+                var nodeModel = FlowFunc.CreateNode(this, controlType, methodDetails); // 加载项目时创建节点
+                nodeModel.LoadInfo(nodeInfo); // 创建节点model
+                if (nodeModel is null)
+                {
+                    nodeInfo.Guid = string.Empty;
+                    continue;
+                }
+
+                TryAddNode(nodeModel); // 加载项目时将节点加载到环境中
+                if (nodeInfo.ChildNodeGuids?.Length > 0)
+                {
+                    regionChildNodes.Add((nodeModel, nodeInfo.ChildNodeGuids));
+
+                    UIContextOperation?.Invoke(() => OnNodeCreate?.Invoke(new NodeCreateEventArgs(nodeModel, nodeInfo.Position)));
+                }
+                else
+                {
+                    ordinaryNodes.Add((nodeModel, nodeInfo.Position));
+                }
+            }
+
+
+
+            // 加载区域子项
+            foreach ((NodeModelBase region, string[] childNodeGuids) item in regionChildNodes)
+            {
+                foreach (var childNodeGuid in item.childNodeGuids)
+                {
+                    NodeModels.TryGetValue(childNodeGuid, out NodeModelBase? childNode);
+                    if (childNode is null)
+                    {
+                        // 节点尚未加载
+                        continue;
+                    }
+                    UIContextOperation?.Invoke(() => OnNodeCreate?.Invoke(new NodeCreateEventArgs(childNode, true, item.region.Guid)));
+                    // 存在节点
+
+                }
+            }
+            // 加载节点
+            foreach ((NodeModelBase nodeModel, PositionOfUI position) item in ordinaryNodes)
+            {
+                bool IsContinue = false;
+                foreach ((NodeModelBase region, string[] childNodeGuids) item2 in regionChildNodes)
+                {
+                    foreach (var childNodeGuid in item2.childNodeGuids)
+                    {
+                        if (item.nodeModel.Guid.Equals(childNodeGuid))
+                        {
+                            IsContinue = true;
+                        }
+                    }
+                }
+                if (IsContinue) continue;
+                UIContextOperation?.Invoke(() => OnNodeCreate?.Invoke(new NodeCreateEventArgs(item.nodeModel, item.position)));
+
+            }
+            return Task.CompletedTask;
+        }
 
         /// <summary>
         /// 流程正在运行时创建节点

NodeFlow/Env/FlowEnvironmentDecorator.cs

@@ -257,6 +257,19 @@ namespace Serein.NodeFlow.Env
             return (isConnect, remoteMsgUtil);
         }
 
+        /// <summary>
+        /// 从节点信息集合批量加载节点控件
+        /// </summary>
+        /// <param name="List<NodeInfo>">节点信息</param>
+        /// <param name="position">需要加载的位置</param>
+        /// <returns></returns>
+        public async Task LoadNodeInfosAsync(List<NodeInfo> nodeInfos)
+        {
+            SetProjectLoadingFlag(false);
+            await currentFlowEnvironment.LoadNodeInfosAsync(nodeInfos); // 装饰器调用
+            SetProjectLoadingFlag(true);
+        }
+
         public async Task<NodeInfo> CreateNodeAsync(NodeControlType nodeBase, PositionOfUI position, MethodDetailsInfo methodDetailsInfo = null)
         {
             SetProjectLoadingFlag(false);

NodeFlow/Env/RemoteFlowEnvironment.cs

@@ -696,6 +696,20 @@ namespace Serein.NodeFlow.Env
             return result;
         }
 
+
+        /// <summary>
+        /// 从节点信息集合批量加载节点控件
+        /// </summary>
+        /// <param name="List<NodeInfo>">节点信息</param>
+        /// <param name="position">需要加载的位置</param>
+        /// <returns></returns>
+        public async Task LoadNodeInfosAsync(List<NodeInfo> nodeInfos)
+        {
+            this.WriteLine(InfoType.INFO, "远程环境尚未实现的接口(重要，会尽快实现)：LoadNodeInfoAsync");
+        }
+
+
+
         /// <summary>
         /// 创建节点/区域/基础控件
         /// </summary>

WorkBench/MainWindow.xaml.cs

@@ -1,4 +1,5 @@
 using Microsoft.Win32;
+using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Serein.Library;
 using Serein.Library.Api;
@@ -12,7 +13,9 @@ using Serein.Workbench.Node;
 using Serein.Workbench.Node.View;
 using Serein.Workbench.Node.ViewModel;
 using Serein.Workbench.Themes;
+using Serein.Workbench.Tool;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
 using System.Runtime.InteropServices;
@@ -23,6 +26,7 @@ using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Animation;
 using System.Windows.Shapes;
+using static Dm.net.buffer.ByteArrayBuffer;
 using DataObject = System.Windows.DataObject;
 
 namespace Serein.Workbench
@@ -1998,7 +2002,10 @@ namespace Serein.Workbench
                 {
                     if (element is NodeControlBase control)
                     {
-                        selectNodeControls.Add(control);
+                        if (!selectNodeControls.Contains(control))
+                        {
+                            selectNodeControls.Add(control);
+                        }
                     }
                 }
             }
@@ -2659,6 +2666,150 @@ namespace Serein.Workbench
                 e.Handled = true; // 禁止默认的Tab键行为
             }
 
+            #region 复制粘贴选择的节点
+            if (Keyboard.Modifiers == ModifierKeys.Control)
+            {
+                #region 复制节点
+                if (e.Key == Key.C && selectNodeControls.Count > 0)
+                {
+                    // 处理复制操作
+                    List<NodeInfo> selectNodeInfos = selectNodeControls.Select(control => control.ViewModel.NodeModel.ToInfo()).ToList();
+
+                    /*foreach (var node in selectNodeInfos.ToArray())
+                    {
+                        // 遍历这些节点的子节点，获得完整的已选节点信息
+                        foreach (var childNodeGuid in node.ChildNodeGuids)
+                        {
+                            if (!string.IsNullOrEmpty(childNodeGuid)
+                                && NodeControls.TryGetValue(childNodeGuid, out var nodeControl))
+                            {
+
+                                var newNodeInfo = nodeControl.ViewModel.NodeModel.ToInfo();
+                                selectNodeInfos.Add(newNodeInfo);
+                            }
+                        }
+                    }*/
+
+
+                    Dictionary<string, string> guids = new Dictionary<string, string>(); // 记录 Guid
+                    // 遍历当前已选节点
+                    foreach (var node in selectNodeInfos.ToArray())
+                    {
+                        if (!guids.ContainsKey(node.Guid))
+                        {
+                            // 如果是没出现过的Guid，则记录并新增对应的映射。
+                            guids.TryAdd(node.Guid, Guid.NewGuid().ToString());
+                        }
+                        else
+                        {
+                            // 出现过的Guid，说明重复添加了。应该不会走到这。
+                            continue;
+                        }
+
+                        if(node.ChildNodeGuids is null)
+                        {
+                            continue; // 跳过没有子节点的节点
+                        }
+
+                        // 遍历这些节点的子节点，获得完整的已选节点信息
+                        foreach (var childNodeGuid in node.ChildNodeGuids)
+                        {
+                            if (!guids.ContainsKey(childNodeGuid))
+                            {
+                                // 如果是没出现过的Guid，则记录并新增对应的映射。
+                                guids.TryAdd(node.Guid, Guid.NewGuid().ToString());
+                            }
+
+                            if (!string.IsNullOrEmpty(childNodeGuid)
+                                && NodeControls.TryGetValue(childNodeGuid, out var nodeControl))
+                            {
+
+                                var newNodeInfo = nodeControl.ViewModel.NodeModel.ToInfo();
+                                selectNodeInfos.Add(newNodeInfo);
+                            }
+                        }
+                    }
+
+                    var replacer = new GuidReplacer();
+                    foreach(var kv in guids)
+                    {
+                        replacer.AddReplacement(kv.Key, kv.Value);
+                    }
+
+                    JObject json = new JObject()
+                    {
+                        ["nodes"] = JArray.FromObject(selectNodeInfos)
+                    };
+                    var jsonText = json.ToString();
+
+                    string result = replacer.Replace(jsonText);
+
+                    try
+                    {
+                        Clipboard.SetDataObject(result, true); // 持久性设置
+                        SereinEnv.WriteLine(InfoType.INFO, $"复制已选节点（{selectNodeInfos.Count}个）");
+                    }
+                    catch (Exception ex)
+                    {
+                        SereinEnv.WriteLine(InfoType.ERROR, $"复制失败：{ex.Message}");
+                    }
+
+                    //SereinEnv.WriteLine(InfoType.INFO, json.ToString());
+                    e.Handled = true;
+                }
+                #endregion
+
+                #region 粘贴节点
+                else if (e.Key == Key.V)
+                {
+                    
+                    if (Clipboard.ContainsText())
+                    {
+                        string clipboardText = Clipboard.GetText(TextDataFormat.Text);
+
+                        List<NodeInfo> nodes = JsonConvert.DeserializeObject<List<NodeInfo>>(JObject.Parse(clipboardText)["nodes"].ToString());
+                        if (nodes is not null && nodes.Count >= 0)
+                        {
+                            Point mousePosition = Mouse.GetPosition(FlowChartCanvas);
+                            PositionOfUI positionOfUI = new PositionOfUI(mousePosition.X, mousePosition.Y); // 坐标数据
+                            SereinEnv.WriteLine(InfoType.INFO, $"粘贴节点({nodes.Count}个)");
+                            // 获取第一个节点的原始位置
+                            var index0NodeX = nodes[0].Position.X;
+                            var index0NodeY = nodes[0].Position.Y;
+
+                            // 计算所有节点相对于第一个节点的偏移量
+                            foreach (var node in nodes)
+                            {
+
+                                var offsetX = node.Position.X - index0NodeX;
+                                var offsetY = node.Position.Y - index0NodeY;
+
+                                // 根据鼠标位置平移节点
+                                node.Position = new PositionOfUI(positionOfUI.X + offsetX, positionOfUI.Y + offsetY);
+                            }
+
+                            _ = EnvDecorator.LoadNodeInfosAsync(nodes);
+                        }
+
+
+                        //SereinEnv.WriteLine(InfoType.INFO, $"剪贴板文本内容: {clipboardText}");
+                    }
+                    else if (Clipboard.ContainsImage())
+                    {
+                        var image = Clipboard.GetImage();
+                    }
+                    else
+                    {
+                        SereinEnv.WriteLine(InfoType.INFO, "剪贴板中没有可识别的数据。");
+                    }
+                    e.Handled = true;
+                } 
+                #endregion
+
+                return;
+            } 
+            #endregion
+
             if (e.KeyStates == Keyboard.GetKeyStates(Key.Escape))
             {
                 IsControlDragging = false;
@@ -2709,6 +2860,8 @@ namespace Serein.Workbench
 
         }
 
+
+
         /// <summary>
         /// 对象装箱测试
         /// </summary>

Workbench/Tool/GuidReplacer.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Workbench.Tool
+{
+    /// <summary>
+    /// Guid替换工具类
+    /// </summary>
+    public class GuidReplacer
+    {
+        private class TrieNode
+        {
+            public Dictionary<char, TrieNode> Children = new();
+            public string Replacement; // 替换后的值
+        }
+
+        private readonly TrieNode _root = new();
+
+        // 构建字典树
+        public void AddReplacement(string guid, string replacement)
+        {
+            var current = _root;
+            foreach (var c in guid)
+            {
+                if (!current.Children.ContainsKey(c))
+                {
+                    current.Children[c] = new TrieNode();
+                }
+                current = current.Children[c];
+            }
+            current.Replacement = replacement;
+        }
+
+        // 替换逻辑
+        public string Replace(string input)
+        {
+            var result = new StringBuilder();
+            var current = _root;
+            int i = 0;
+
+            while (i < input.Length)
+            {
+                if (current.Children.ContainsKey(input[i]))
+                {
+                    current = current.Children[input[i]];
+                    i++;
+
+                    if (current.Replacement != null) // 找到匹配
+                    {
+                        result.Append(current.Replacement);
+                        current = _root; // 回到根节点
+                    }
+                }
+                else
+                {
+                    result.Append(input[i]);
+                    current = _root; // 未匹配，回到根节点
+                    i++;
+                }
+            }
+            return result.ToString();
+        }
+    }
+
+}