diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo1_SqlSugarClient.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo1_SqlSugarClient.cs
index 31cec4bcc..a0f120b3b 100644
--- a/Src/Asp.Net/SqlServerTest/Demo/Demo1_SqlSugarClient.cs
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo1_SqlSugarClient.cs
@@ -1,5 +1,7 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Data.Linq.Mapping;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -13,8 +15,50 @@ namespace OrmTest
         {
             SingletonPattern();//单例
             DistributedTransactionExample();//分布式事务
+            CustomAttribute();//自定义特性
         }
 
+        private static void CustomAttribute()
+        {
+            Console.WriteLine("");
+            Console.WriteLine("#### Custom Attribute Start ####");
+            SqlSugarClient db = new SqlSugarClient(new ConnectionConfig()
+            {
+                ConnectionString = Config.ConnectionString,
+                DbType = DbType.SqlServer,
+                IsAutoCloseConnection = true,
+                InitKeyType = InitKeyType.Attribute,
+                ConfigureExternalServices = new ConfigureExternalServices()
+                {
+                    EntityService = (property, column) =>
+                    {
+
+                        var attributes = property.GetCustomAttributes(true);//get all attributes 
+
+                        if (attributes.Any(it => it is KeyAttribute))// by attribute set primarykey
+                        {
+                            column.IsPrimarykey = true;
+                        }
+                    },
+                    EntityNameService = (type, entity) =>
+                    {
+                        var attributes = type.GetCustomAttributes(true);
+                        if (attributes.Any(it => it is TableAttribute))
+                        {
+                            entity.DbTableName = (attributes.First(it => it is TableAttribute) as TableAttribute).Name;
+                        }
+                    }
+                }
+            });
+            db.CodeFirst.InitTables<MyCustomAttributeTable>();//Create Table
+
+            db.Insertable(new MyCustomAttributeTable() { Id = Guid.NewGuid().ToString(), Name = "Name" }).ExecuteCommand();
+            var list = db.Queryable<MyCustomAttributeTable>().ToList();
+
+            Console.WriteLine("#### Custom Attribute End ####");
+        }
+
+
         private static void SingletonPattern()
         {
             Console.WriteLine("");
@@ -65,6 +109,12 @@ namespace OrmTest
                 new ConnectionConfig(){ ConfigId=2, DbType=DbType.MySql, ConnectionString=Config.ConnectionString4 ,InitKeyType=InitKeyType.Attribute ,IsAutoCloseConnection=true}
             });
 
+            db.MappingTables.Add(typeof(Order).Name, typeof(Order).Name + "2018");
+            db.CodeFirst.SetStringDefaultLength(200).InitTables(typeof(Order));
+
+            db.MappingTables.Add(typeof(Order).Name, typeof(Order).Name + "2019");
+            db.CodeFirst.SetStringDefaultLength(200).InitTables(typeof(Order));//
+
             //use first(SqlServer)
             db.CodeFirst.SetStringDefaultLength(200).InitTables(typeof(Order), typeof(OrderItem));//
             db.Insertable(new Order() { Name = "order1", CreateTime = DateTime.Now }).ExecuteCommand();
diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo2_Queryable.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo2_Queryable.cs
new file mode 100644
index 000000000..288f6defb
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo2_Queryable.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest.Demo
+{
+    class Demo2_Queryable
+    {
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/Models/Class1.cs b/Src/Asp.Net/SqlServerTest/Models/Class1.cs
new file mode 100644
index 000000000..7bcf88b79
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/Models/Class1.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Data.Linq.Mapping;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest
+{
+    [Table(Name = "CustomAttributeTable")]
+    //[SugarTable("CustomAttributeTable")]
+    public class MyCustomAttributeTable
+    {
+
+        [Key]
+        //[SugarColumn(IsPrimaryKey =true)]
+        public string Id { get; set; }
+        public string Name { get; set; }
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index 6707bee85..c40171580 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -49,6 +49,8 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Demo\Demo2_Queryable.cs" />
+    <Compile Include="Models\Class1.cs" />
     <Compile Include="Models\Order.cs" />
     <Compile Include="Models\OrderItem.cs" />
     <Compile Include="Demo\Demo1_SqlSugarClient.cs" />
diff --git a/Src/Asp.Net/SqlSugar/4.9.9.11 net 版本DLL .rar b/Src/Asp.Net/SqlSugar/4.9.9.11 net 版本DLL .rar
new file mode 100644
index 000000000..6243c1278
Binary files /dev/null and b/Src/Asp.Net/SqlSugar/4.9.9.11 net 版本DLL .rar differ