重写了节点的view、viewmodel关系，实现了对画布元素的选取功能，重构了底层依赖，添加了对net .Framework4.6.1以上的Framework类库支持

Library.Framework/Http/Attribute.cs

@@ -0,0 +1,167 @@
+using Serein.Library.Framework.NodeFlow;
+using System;
+
+namespace Serein.Library.Framework.Http
+{
+
+    ///// <summary>
+    ///// 用来判断一个类是否需要注册并构建实例（单例模式场景使用）
+    ///// </summary>
+    //[AttributeUsage(AttributeTargets.Class)]
+    //public class DynamicFlowAttribute : Attribute
+    //{
+    //    public DynamicFlowAttribute(bool scan = true)
+    //    {
+    //        Scan = scan;
+    //    }
+    //    public bool Scan { get; set; }
+    //}
+
+    ///// <summary>
+    ///// 标记一个方法是什么类型，加载dll后用来拖拽到画布中
+    ///// </summary>
+    //[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
+    //public class MethodDetailAttribute : Attribute
+    //{
+
+    //    public MethodDetailAttribute(DynamicNodeType methodDynamicType,
+    //                                   string methodTips = "",
+    //                                   bool scan = true,
+    //                                   string lockName = "")
+    //    {
+    //        Scan = scan;
+    //        MethodDynamicType = methodDynamicType;
+    //        MethodTips = methodTips;
+    //        LockName = lockName;
+    //    }
+    //    public bool Scan { get; set; }
+    //    public string MethodTips { get; }
+    //    public DynamicNodeType MethodDynamicType { get; }
+    //    public string LockName { get; }
+    //}
+
+    /// <summary>
+    /// 是否为显式参数
+    /// </summary>
+    //[AttributeUsage(AttributeTargets.Parameter)]
+    //public class ExplicitAttribute : Attribute // where TEnum : Enum
+    //{
+    //}
+
+
+
+    /// <summary>
+    /// 表示参数为url中的数据（Get请求中不需要显式标注）
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Parameter)]
+    public sealed class IsUrlDataAttribute : Attribute
+    {
+
+    }
+
+    /// <summary>
+    /// 表示入参参数为整个boby的数据
+    /// <para>
+    /// 例如：User类型含有int id、string name字段</para>
+    /// <para>
+    /// ① Add(User user)</para>
+    ///  <para>请求需要传入的json为
+    ///      {"user":{
+    ///        "id":2,
+    ///        "name":"李志忠"}}</para>
+    ///   <para>
+    /// ② Add([Boby]User user)</para>
+    ///  <para>请求需要传入的json为
+    ///      {"id":2,"name":"李志忠"}</para>
+    /// 
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Parameter)]
+    public sealed class IsBobyDataAttribute : Attribute
+    {
+
+    }
+
+    /// <summary>
+    /// 表示该控制器会被自动注册（与程序集同一命名空间，暂时不支持运行时自动加载DLL，需要手动注册）
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Class)]
+    public sealed class AutoHostingAttribute : Attribute
+    {
+        public AutoHostingAttribute(string url = "")
+        {
+            Url = url;
+        }
+        public string Url { get; }
+    }
+    /// <summary>
+    /// 表示该属性为自动注入依赖项
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Property)]
+    public sealed class AutoInjectionAttribute : Attribute
+    {
+    }
+
+
+    /// <summary>
+    /// 方法的接口类型与附加URL
+    /// </summary>
+    /// <remarks>
+    ///  假设UserController.Add()的WebAPI特性中
+    ///  http是HTTP.POST
+    ///  url被显示标明“temp”
+    ///  那么请求的接口是POST,URL是
+    ///  [http://localhost:8080]/user/add/temp
+    /// </remarks>
+    /// <param name="http"></param>
+    /// <param name="url"></param>
+    [AttributeUsage(AttributeTargets.Method)]
+
+    public sealed class WebApiAttribute : Attribute
+
+    {
+        public API Type;
+        public string Url;
+        /// <summary>
+        /// 方法名称不作为url的部分
+        /// </summary>
+        public bool IsUrl;
+    }
+    [AttributeUsage(AttributeTargets.Method)]
+
+    public sealed class ApiPostAttribute : Attribute
+
+    {
+        public string Url;
+        /// <summary>
+        /// 方法名称不作为url的部分
+        /// </summary>
+        public bool IsUrl = true;
+    }
+    [AttributeUsage(AttributeTargets.Method)]
+
+    public sealed class ApiGetAttribute : Attribute
+
+    {
+        public string Url;
+        /// <summary>
+        /// 方法名称不作为url的部分
+        /// </summary>
+        public bool IsUrl = true;
+    }
+    /*public sealed class WebApiAttribute(API http, bool isUrl = true, string url = "") : Attribute
+    {
+        public API Http { get; } = http;
+        public string Url { get; } = url;
+        /// <summary>
+        /// 方法名称不作为url的部分
+        /// </summary>
+        public bool IsUrl { get; } = isUrl;
+    }*/
+    public enum API
+    {
+        POST,
+        GET,
+        //PUT,
+        //DELETE
+    }
+}