修改了logwindows输出，避免高频输出时卡死。修改了流程运行上下文，使节点具备终止分支运行的能力。

Library.Framework/NodeFlow/DynamicContext.cs

@@ -1,6 +1,8 @@
 using Serein.Library.Api;
+using Serein.Library.Enums;
 using Serein.Library.Utils;
 using System;
+using System.Collections.Concurrent;
 using System.Security.Claims;
 using System.Threading.Tasks;
 
@@ -17,12 +19,63 @@ namespace Serein.Library.Framework.NodeFlow
         {
             // SereinIoc = sereinIoc;
             Env = flowEnvironment;
+            RunState = RunState.Running;
+        }
+
+  
+
+        /// <summary>
+        /// 运行环境
+        /// </summary>
+        public IFlowEnvironment Env { get; }
+
+        /// <summary>
+        /// 运行状态
+        /// </summary>
+        public RunState RunState { get; set; } = RunState.NoStart;
+        /// <summary>
+        /// 每个上下文分别存放节点的当前数据
+        /// </summary>
+        private readonly ConcurrentDictionary<string, object> dictNodeFlowData = new ConcurrentDictionary<string, object>();
+
+        /// <summary>
+        /// 获取节点当前数据
+        /// </summary>
+        /// <param name="nodeGuid"></param>
+        /// <returns></returns>
+        public object GetFlowData(string nodeGuid)
+        {
+            if (dictNodeFlowData.TryGetValue(nodeGuid, out var data))
+            {
+                return data;
+            }
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// 添加或更新当前节点数据
+        /// </summary>
+        /// <param name="nodeGuid">节点Guid</param>
+        /// <param name="flowData">新的数据</param>
+        public void AddOrUpdate(string nodeGuid, object flowData)
+        {
+            // this.dictNodeFlowData.TryGetValue(nodeGuid, out var oldFlowData);
+            this.dictNodeFlowData[nodeGuid] = flowData;
+        }
+
+        /// <summary>
+        /// 结束流程
+        /// </summary>
+        public void EndCurrentBranch()
+        {
+            this.dictNodeFlowData?.Clear();
+            RunState = RunState.Completion;
         }
 
         // public NodeRunCts NodeRunCts { get; set; }
         // public ISereinIOC SereinIoc { get; }
-        public IFlowEnvironment Env { get; }
-
         //public Task CreateTimingTask(Action action, int time = 100, int count = -1)
         //{
         //    if(NodeRunCts == null)