项目结构调整

Extensions/AIStudio.Wpf.SFC/ViewModels/SFCStartNode.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using AIStudio.Wpf.DiagramDesigner;
+using AIStudio.Wpf.DiagramDesigner.Models;
+
+namespace AIStudio.Wpf.SFC.ViewModels
+{
+    public class SFCStartNode : SFCNode
+    {
+        public SFCStartNode() : this(null)
+        {
+          
+        }
+
+        public SFCStartNode(IDiagramViewModel root) : base(root, SFCNodeKinds.Start)
+        {
+            ExecuteAddTopInput(null);
+            ExecuteAddBottomOutput(null);
+        }
+
+        public SFCStartNode(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
+        {
+        }
+
+        public SFCStartNode(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
+        {
+
+        }
+    }
+}