暂时实现了简陋的脚本AST分析解释，后面再绑定到控件上

Serein.Script/Node/ASTNode.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Script.Node
+{
+    public abstract class ASTNode
+    {
+        public string Code { get; private set; }
+        public int Row { get; private set; }
+        public int StartIndex { get; private set; }
+        public int Length { get; private set; }
+
+        internal ASTNode SetTokenInfo(Token token)
+        {
+            Row = token.Row;
+            StartIndex = token.StartIndex;
+            Length = token.Length;
+            Code = token.Code;
+            return this;
+        }
+    }
+
+}