实现了拖拽式设置方法调用顺序、方法入参参数来源

Workbench/Node/INodeJunction.cs

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+using Serein.Workbench.Node.View;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Serein.Workbench.Node
+{
+    /// <summary>
+    /// 约束一个节点应该有哪些控制点
+    /// </summary>
+    public interface INodeJunction
+    {
+        /// <summary>
+        /// 方法执行入口控制点
+        /// </summary>
+        JunctionControlBase ExecuteJunction {  get; }
+        /// <summary>
+        /// 执行完成后下一个要执行的方法控制点
+        /// </summary>
+        JunctionControlBase NextStepJunction {  get; }
+
+        /// <summary>
+        /// 参数节点控制点
+        /// </summary>
+        JunctionControlBase[] ArgDataJunction { get; }
+        /// <summary>
+        /// 返回值控制点
+        /// </summary>
+        JunctionControlBase ReturnDataJunction { get; }
+    }
+}