改写NodeModelBase类，使其继承Serein.Library.Api下的IFlowNode接口，而实现类迁移到NodeModel项目，方便后续节点运行逻辑修改时不用重新编译类库。

Library/Api/IFlowNode.cs

@@ -0,0 +1,123 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Threading.Tasks;
+using Serein.Library;
+
+namespace Serein.Library.Api
+{
+
+    /// <summary>
+    /// 流程节点
+    /// </summary>
+    public interface IFlowNode : INotifyPropertyChanged, IDynamicFlowNode
+    {
+        /// <summary>
+        /// 节点持有的运行环境
+        /// </summary>
+        IFlowEnvironment Env {  get; set; }
+
+        /// <summary>
+        /// 节点唯一标识
+        /// </summary>
+        string Guid { get; set; }
+
+        /// <summary>
+        /// 节点的类型
+        /// </summary>
+        NodeControlType ControlType { get; set; }
+
+        /// <summary>
+        /// 节点所在画布
+        /// </summary>
+        FlowCanvasDetails CanvasDetails {  get; set; }
+
+        /// <summary>
+        /// 节点位置
+        /// </summary>
+        PositionOfUI Position { get; set; }
+
+        /// <summary>
+        /// 节点显示名称
+        /// </summary>
+        string DisplayName { get; set; }
+
+        /// <summary>
+        /// 是否作为公开的节点，用以“流程接口”节点调用
+        /// </summary>
+        bool IsPublic { get; set; }
+
+        /// <summary>
+        /// 是否为基础节点，指示节点创建中的行为
+        /// </summary>
+        bool IsBase { get; } 
+
+        /// <summary>
+        /// 最多可以放置几个节点，当该节点具有容器功能时，用来指示其容器的行为。
+        /// </summary>
+        int MaxChildrenCount { get;}
+
+        /// <summary>
+        /// 调试器
+        /// </summary>
+        NodeDebugSetting DebugSetting { get; set; }
+
+        /// <summary>
+        /// 节点方法描述，包含入参数据
+        /// </summary>
+        MethodDetails MethodDetails { get; set; }
+
+        /// <summary>
+        /// 父节点
+        /// </summary>
+        Dictionary<ConnectionInvokeType, List<IFlowNode>> PreviousNodes { get;}
+        /// <summary>
+        /// 子节点
+        /// </summary>
+        Dictionary<ConnectionInvokeType, List<IFlowNode>> SuccessorNodes { get; set; }
+
+        /// <summary>
+        /// 当该节点放置在某个具有容器行为的节点时，该值指示其容器节点
+        /// </summary>
+        IFlowNode ContainerNode { get; set; }
+
+        /// <summary>
+        /// 当该节点具备容器行为时，该集合包含其容器中的节点
+        /// </summary>
+        List<IFlowNode> ChildrenNode { get; }
+
+        /// <summary>
+        /// 节点创建时的行为
+        /// </summary>
+        void OnCreating();
+        /// <summary>
+        /// 节点移除时的行为
+        /// </summary>
+        void Remove();
+
+        /// <summary>
+        /// 节点保存时如若需要保存自定义数据，可通过该方法进行控制保存逻辑
+        /// </summary>
+        /// <param name="nodeInfo"></param>
+        /// <returns></returns>
+        NodeInfo SaveCustomData(NodeInfo nodeInfo);
+
+        /// <summary>
+        /// 节点从信息创建后需要加载自定义数据时，可通过该方法进行控制加载逻辑
+        /// </summary>
+        /// <param name="nodeInfo"></param>
+        void LoadCustomData(NodeInfo nodeInfo);
+
+        /// <summary>
+        /// 节点执行方法
+        /// </summary>
+        /// <param name="context"></param>
+        /// <param name="token"></param>
+        /// <returns></returns>
+        Task<FlowResult> ExecutingAsync(IDynamicContext context, CancellationToken token);
+    }
+}