暂时实现了简陋的脚本AST分析解释，后面再绑定到控件上

Workbench/Node/ViewModel/ScriptNodeControlViewModel.cs

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+using Serein.Library;
+using Serein.Library.Core;
+using Serein.Library.Utils;
+using Serein.NodeFlow.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+
+namespace Serein.Workbench.Node.ViewModel
+{
+    public class ScriptNodeControlViewModel : NodeControlViewModelBase
+    {
+        private SingleScriptNode NodeModel => (SingleScriptNode)base.NodeModel;
+
+        public string? Script
+        {
+            get => NodeModel?.Script;
+            set { NodeModel.Script = value; OnPropertyChanged(); }
+        }
+
+
+
+        public ScriptNodeControlViewModel(NodeModelBase nodeModel) : base(nodeModel)
+        {
+            CommandExecuting = new RelayCommand(async o =>
+            {
+                try
+                {
+                    var result = await NodeModel.ExecutingAsync(new DynamicContext(nodeModel.Env));
+                    SereinEnv.WriteLine(InfoType.INFO, result?.ToString());
+                }
+                catch (Exception ex)
+                {
+                    SereinEnv.WriteLine(InfoType.ERROR, ex.ToString());
+                }
+            });
+
+            CommandLoadScript = new RelayCommand( o =>
+            {
+                NodeModel.LoadScript();
+            });
+        }
+
+
+        /// <summary>
+        /// 加载脚本代码
+        /// </summary>
+        public ICommand CommandLoadScript{ get; }
+
+        /// <summary>
+        /// 尝试执行
+        /// </summary>
+        public ICommand CommandExecuting { get; }
+
+
+
+    }
+}