1. 修改了FlowResult的创建方式，新增了IsSuccess与Message，为后续进行流程日志追踪准备。

2. 修复了删除节点时，没有正确消除与之相关的参数获取关系。
3. IFlowNode新增了StartFlowAsync方法。
4. Library项目中FlowNodeExtension拓展类转移到了NodeFlow项目中。
5.  修改了Script自定义参数保存，对参数类型、返回值类型进行保存。
6. Library.Utils.BenchmarkHelpter中添加了Task、Task<>的重载方法。
7. NodeFlow项目中，FlowEnvironment默认使用通过NewtonsoftJson实现的JSON门户类。
8. NodeFlow项目中，FlowControl缓存了 FlowWorkOptions 选项实体，并且对于 FlowWorkManagement 进行了池化管理（但后续的项目中考虑重构流程任务运行时）。

Library/FlowNode/FlowContext.cs

@@ -224,7 +224,7 @@ namespace Serein.Library
         /// <param name="data"></param>
         public void AddOrUpdate(string nodeModel, object data)
         {
-            var flowData = new FlowResult(nodeModel, this, data);
+            var flowData = FlowResult.OK(nodeModel, this,  data);
             dictNodeFlowData.AddOrUpdate(nodeModel, _ => flowData, (o, n) => flowData);
         }
 

Library/FlowNode/FlowResult.cs

@@ -31,23 +31,35 @@ namespace Serein.Library
         /// </summary>
         /// <param name="nodeGuid"></param>
         /// <param name="context"></param>
-        public FlowResult(string nodeGuid, IFlowContext context, object value)
+        public static FlowResult OK(string nodeGuid, IFlowContext context, object value)
         {
-            this.SourceNodeGuid = nodeGuid;
-            this.ContextGuid = context.Guid;
-            this.Value = value;
+            FlowResult flowResult = new FlowResult
+            {
+                SourceNodeGuid = nodeGuid,
+                ContextGuid = context.Guid,
+                Value = value,
+                IsSuccess = true,
+            };
+            return flowResult;
         }
 
         /// <summary>
-        /// 空返回值
+        /// 失败
         /// </summary>
         /// <param name="nodeGuid"></param>
         /// <param name="context"></param>
-        public FlowResult(string nodeGuid, IFlowContext context)
+        /// <param name="message"></param>
+        public static FlowResult Fail(string nodeGuid, IFlowContext context, string message)
         {
-            this.SourceNodeGuid = nodeGuid;
-            this.ContextGuid = context.Guid;
-            this.Value  = Unit.Default;
+            FlowResult flowResult = new FlowResult
+            {
+                SourceNodeGuid = nodeGuid,
+                ContextGuid = context.Guid,
+                Value = Unit.Default,
+                IsSuccess = true,
+                Message = message,
+            };
+            return flowResult;
         }
 
         /// <summary>
@@ -72,16 +84,26 @@ namespace Serein.Library
             return false;
         }
 
+        /// <summary>
+        /// 指示是否成功
+        /// </summary>
+        public bool IsSuccess { get; set; }
 
+        /// <summary>
+        /// 执行结果消息（提示异常）
+        /// </summary>
+        public string Message { get; set; } = string.Empty;
 
         /// <summary>
         /// 来源节点Guid
         /// </summary>
-        public string SourceNodeGuid{ get; }
+        public string SourceNodeGuid{ get; private set; }
+
         /// <summary>
         /// 来源上下文Guid
         /// </summary>
-        public string ContextGuid { get; } 
+        public string ContextGuid { get; private set; } 
+
         /// <summary>
         /// 数据值
         /// </summary>

Library/FlowNode/LightweightFlowEnvironment.cs

@@ -300,7 +300,7 @@ namespace Serein.Library
                 }
                 catch (Exception ex)
                 {
-                    flowResult = new FlowResult(currentNode.Guid, context);
+                    flowResult = FlowResult.Fail(currentNode.Guid, context, ex.Message);
                     context.Env.WriteLine(InfoType.ERROR, $"节点[{currentNode}]异常：" + ex);
                     context.NextOrientation = ConnectionInvokeType.IsError;
                     context.ExceptionOfRuning = ex;