diff --git a/FreeSql/Extensions/CodeFirstExtensions.cs b/FreeSql/Extensions/CodeFirstExtensions.cs
index 6ccf08c5..818be04c 100644
--- a/FreeSql/Extensions/CodeFirstExtensions.cs
+++ b/FreeSql/Extensions/CodeFirstExtensions.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Reflection;
 using System.Text;
 using FreeSql.DataAnnotations;
 using FreeSql.Internal;
@@ -7,30 +8,19 @@ using FreeSql.Internal;
 namespace FreeSql.Extensions
 {
 #if net40 || NETSTANDARD2_0
-    //不支持
 #else
-    public static  class CodeFirstExtensions
+    public static class CodeFirstExtensions
     {
         /// <summary>
         /// 动态构建Class Type
         /// </summary>
         /// <returns></returns>
-        public static DynamicCompileBuilder DynamicEntity(this ICodeFirst codeFirst, string className, TableAttribute tableAttribute)
+        public static DynamicCompileBuilder DynamicEntity(this ICodeFirst codeFirst, string className,
+            TableAttribute tableAttribute)
         {
             return new DynamicCompileBuilder().SetClass(className, tableAttribute);
         }
 
-        /// <summary>
-        /// 根据动态构建的Class Type生成实例并进行属性赋值
-        /// </summary>
-        /// <param name="type"></param>
-        /// <param name="porpertys"></param>
-        /// <returns></returns>
-        public static object CreateDynamicEntityInstance(this Type type,
-            Dictionary<string, object> porpertys)
-        {
-           return DynamicCompileBuilder.CreateObjectByType(type, porpertys);
-        }
     }
 #endif
-}
+}
\ No newline at end of file