重写脚本解释器的实现，提高其可读性。

Serein.Script/Node/AssignmentNode.cs

@@ -22,7 +22,7 @@ namespace Serein.Script.Node
         /// </summary>
         public ASTNode Value { get; }
 
-        public AssignmentNode(ASTNode targetObject, ASTNode value) => (Target, Value) = (targetObject, value);
+        public AssignmentNode(ASTNode target, ASTNode value) => (Target, Value) = (target, value);
     }
 
 

Serein.Script/Node/ClassTypeDefinitionNode.cs

@@ -22,8 +22,28 @@ namespace Serein.Script.Node
         /// <summary>
         /// 字段名称及字段类型
         /// </summary>
+        [Obsolete("此属性已经过时，将会改为Dictionary<string, string>", false)] 
         public Dictionary<string, Type> Fields { get; }
+        
+        /// <summary>
+        /// 字段名称及字段类型(Kvp[fididName:fidleTypeName])
+        /// </summary>
+        public Dictionary<string, string> FieldInfos { get; }
 
+        public ClassTypeDefinitionNode(Dictionary<string, string> fields, string className)
+        {
+            this.FieldInfos = fields;
+            this.ClassName = className;
+        }
+
+        [Obsolete("此构造方法已经过时，可能在下一个版本中移除", false)]
+        public ClassTypeDefinitionNode(Dictionary<string, Type> fields, string className)
+        {
+            this.Fields = fields;
+            this.ClassName = className;
+        }
+
+        [Obsolete("此构造方法已经过时，可能在下一个版本中移除", false)]
         public ClassTypeDefinitionNode(Dictionary<string, Type> fields, string className, bool isOverlay)
         {
             this.Fields = fields;

Serein.Script/Node/CollectionIndexNode.cs

@@ -20,10 +20,33 @@ namespace Serein.Script.Node
         /// 索引来源
         /// </summary>
         public ASTNode Index { get; }
-        public CollectionIndexNode(ASTNode TargetValue,ASTNode indexValue)
+
+        public CollectionIndexNode(ASTNode Collection, ASTNode indexValue)
         {
-            this.Collection = TargetValue;
+            this.Collection = Collection;
             this.Index = indexValue;
         }
     }
+
+    /// <summary>
+    /// 集合赋值节点
+    /// </summary>
+    public class CollectionAssignmentNode : ASTNode
+    {
+        /// <summary>
+        /// 集合来源
+        /// </summary>
+        public CollectionIndexNode Collection { get; }
+
+        /// <summary>
+        /// 索引来源
+        /// </summary>
+        public ASTNode Value { get; }
+
+        public CollectionAssignmentNode(CollectionIndexNode collection, ASTNode value)
+        {
+            this.Collection = collection;
+            this.Value = value;
+        }
+    }
 }

Serein.Script/Node/ExpressionNode.cs

@@ -1,13 +1,13 @@
 namespace Serein.Script.Node
 {
-    public class ObjectMemberExpressionNode : ASTNode
+    public class ExpressionNode : ASTNode
     {
         /// <summary>
         /// 对象成员（嵌套获取）
         /// </summary>
         public ASTNode Value { get; }
 
-        public ObjectMemberExpressionNode(ASTNode value)
+        public ExpressionNode(ASTNode value)
         {
             this.Value = value;
         }

Serein.Script/Node/FlowControl/IfNode.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Serein.Script.Node
+namespace Serein.Script.Node.FlowControl
 {
     /// <summary>
     /// 条件节点

Serein.Script/Node/FlowControl/ProgramNode.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Serein.Script.Node
+namespace Serein.Script.Node.FlowControl
 {
     /// <summary>
     /// 程序入口

Serein.Script/Node/FlowControl/ReturnNode.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Serein.Script.Node
+namespace Serein.Script.Node.FlowControl
 {
     /// <summary>
     /// 返回值

Serein.Script/Node/FlowControl/WhileNode.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Serein.Script.Node
+namespace Serein.Script.Node.FlowControl
 {
     /// <summary>
     /// 循环条件节点