从节点Model解耦出容器接口，重新设计了节点的保存、加载。

Library/FlowNode/NodeModelBaseData.cs

@@ -12,7 +12,7 @@ namespace Serein.Library
 
 
     /// <summary>
-    /// 节点基类（数据）：条件控件，动作控件，条件区域，动作区域
+    /// 节点基类（数据）
     /// </summary>
     [NodeProperty(ValuePath = NodeValuePath.None)]
     public abstract partial class NodeModelBase : IDynamicFlowNode
@@ -69,6 +69,16 @@ namespace Serein.Library
 
     public abstract partial class NodeModelBase : IDynamicFlowNode
     {
+        /// <summary>
+        /// 是否为基础节点
+        /// </summary>
+        public virtual bool IsBase { get; } = false;
+
+        /// <summary>
+        /// 可以放置多少个节点
+        /// </summary>
+        public virtual int MaxChildrenCount { get; } = 0;
+
         public NodeModelBase(IFlowEnvironment environment)
         {
             PreviousNodes = new Dictionary<ConnectionInvokeType, List<NodeModelBase>>();
@@ -78,21 +88,33 @@ namespace Serein.Library
                 PreviousNodes[ctType] = new List<NodeModelBase>();
                 SuccessorNodes[ctType] = new List<NodeModelBase>();
             }
+            ChildrenNode = new List<NodeModelBase>();
             DebugSetting = new NodeDebugSetting(this);
             this.Env = environment;
         }
 
 
         /// <summary>
-        /// 不同分支的父节点
+        /// 不同分支的父节点（流程调用）
         /// </summary>
         public Dictionary<ConnectionInvokeType, List<NodeModelBase>> PreviousNodes { get; }
 
         /// <summary>
-        /// 不同分支的子节点
+        /// 不同分支的子节点（流程调用）
         /// </summary>
         public Dictionary<ConnectionInvokeType, List<NodeModelBase>> SuccessorNodes { get; }
 
+        /// <summary>
+        /// 该节点的父级节点（容器）
+        /// </summary>
+        public NodeModelBase ParentNode {  get; set; } = null;
+
+        /// <summary>
+        /// 该节点的子项节点（容器）
+        /// </summary>
+        public List<NodeModelBase> ChildrenNode {  get; }
+
+
     }
  }
 

Library/FlowNode/NodeModelBaseFunc.cs

@@ -164,6 +164,8 @@ namespace Serein.Library
                 IsProtectionParameter = this.MethodDetails.IsProtectionParameter,
                 IsInterrupt = this.DebugSetting.IsInterrupt,
                 IsEnable = this.DebugSetting.IsEnable,
+                ParentNodeGuid = ParentNode?.Guid,
+                ChildNodeGuids = ChildrenNode.Select(item => item.Guid).ToArray(),
             };
             nodeInfo.Position.X = Math.Round(nodeInfo.Position.X, 1);
             nodeInfo.Position.Y = Math.Round(nodeInfo.Position.Y, 1);

Library/FlowNode/ParameterDetails.cs

@@ -180,7 +180,7 @@ namespace Serein.Library
 
         public override string ToString()
         {
-            return $"[{this.Index}] {this.Name} : {this.ExplicitType.FullName} -> {this.DataType.FullName}";
+            return $"[{this.Index}] {this.Name} : {this.ExplicitType?.FullName} -> {this.DataType?.FullName}";
         }
     }
 

Library/FlowNode/SereinProjectData.cs

@@ -230,8 +230,15 @@ namespace Serein.Library
         /// </summary>
         public ParameterData[] ParameterData { get; set; }
 
+
         /// <summary>
-        /// 如果是区域控件，则会存在子项。
+        /// 父级节点Guid
+        /// </summary>
+        public string ParentNodeGuid{ get; set; }
+
+
+        /// <summary>
+        /// 如果是区域控件，则会存在子项，这里记录的是子项的Guid。
         /// </summary>
         public string[] ChildNodeGuids { get; set; }