重写了节点主动中断功能，修改了运行环境持久化注册已有实例的逻辑。

Library/Api/IScriptFlowApi.cs

@@ -12,7 +12,7 @@ namespace Serein.Library.Api
     public interface IScriptFlowApi
     {
         /// <summary>
-        /// 当前流程
+        /// 当前流程运行环境
         /// </summary>
         IFlowEnvironment Env { get; }
         /// <summary>
@@ -20,34 +20,28 @@ namespace Serein.Library.Api
         /// </summary>
         NodeModelBase NodeModel { get; }
 
-        /// <summary>
-        /// 动态流程上下文
-        /// </summary>
-        IDynamicContext Context { get; set; }
-
         /// <summary>
         /// 根据索引从入参数据获取数据 
         /// </summary>
+        /// <param name="context"></param>
         /// <param name="index"></param>
         /// <returns></returns>
-        object GetArgData(int index);
+        object GetArgData(IDynamicContext context, int index);
         /// <summary>
-        /// 根据入参名称从入参数据获取数据
+        /// 获取流程当前传递的数据
         /// </summary>
-        /// <param name="name"></param>
+        /// <param name="context"></param>
         /// <returns></returns>
-        // object GetDataOfParams(string name);
+        object GetFlowData(IDynamicContext context);
+
         /// <summary>
         /// 获取全局数据
         /// </summary>
         /// <param name="keyName"></param>
         /// <returns></returns>
         object GetGlobalData(string keyName);
-        /// <summary>
-        /// 获取流程当前传递的数据
-        /// </summary>
-        /// <returns></returns>
-        object GetFlowData();
+
+
         /// <summary>
         /// 立即调用某个节点并获取其返回值
         /// </summary>