优化了脚本生成AST时的代码提示，增加了脚本运行时错误提示。

Serein.Script/Node/NumberIntNode.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Script.Node
+{
+    /// <summary>
+    /// 数值型节点
+    /// </summary>
+    public abstract class NumberNode<T> : ASTNode where T : struct, IComparable<T>
+    {
+        public T Value { get; }
+        public NumberNode(T value) => Value = value;
+    }
+
+
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberIntNode(int vlaue) : NumberNode<int>(vlaue)
+    {
+    }
+    
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberLongNode(long vlaue) : NumberNode<long>(vlaue)
+    {
+    }
+    
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberFloatNode(float vlaue) : NumberNode<float>(vlaue)
+    {
+    }
+    
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberDoubleNode(double vlaue) : NumberNode<double>(vlaue)
+    {
+    }
+
+
+
+
+    /*/// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberIntNode : ASTNode
+    {
+        public int Value { get; }
+        public NumberIntNode(int value) => Value = value;
+    }
+    
+
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberLongNode : ASTNode
+    {
+        public long Value { get; }
+        public NumberLongNode(long value) => Value = value;
+    }
+    
+
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberFloatNode : ASTNode
+    {
+        public float Value { get; }
+        public NumberFloatNode(float value) => Value = value;
+    }
+    
+
+    /// <summary>
+    /// int 整数型字面量
+    /// </summary>
+    public class NumberDoubleNode : ASTNode
+    {
+        public double Value { get; }
+        public NumberDoubleNode(double value) => Value = value;
+    }*/
+
+
+}