diff --git a/OrmTest/Demo/Delete.cs b/OrmTest/Demo/Delete.cs
new file mode 100644
index 000000000..0dc19f7da
--- /dev/null
+++ b/OrmTest/Demo/Delete.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Demo
+{
+    class Delete
+    {
+    }
+}
diff --git a/OrmTest/Demo/Insert.cs b/OrmTest/Demo/Insert.cs
new file mode 100644
index 000000000..25da9de83
--- /dev/null
+++ b/OrmTest/Demo/Insert.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Demo
+{
+    class Insert
+    {
+    }
+}
diff --git a/OrmTest/Demo/Query.cs b/OrmTest/Demo/Query.cs
new file mode 100644
index 000000000..1e4b86d4d
--- /dev/null
+++ b/OrmTest/Demo/Query.cs
@@ -0,0 +1,77 @@
+using OrmTest.Models;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Demo
+{
+    public class Query
+    {
+
+        public static void Init()
+        {
+            Easy();
+            Page();
+            Where();
+            Join();
+            Funs();
+            Select();
+        }
+
+        public static void Easy()
+        {
+            var db = GetInstance();
+            var getAll = db.Queryable<Student>().ToList();
+            var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
+            var getByWhere = db.Queryable<Student>().Where(it => it.Id == 1 || it.Name == "a").ToList();
+            var getByFuns = db.Queryable<Student>().Where(it => NBORM.IsNullOrEmpty(it.Name)).ToList();
+        }
+
+        public static void Page()
+        {
+
+        }
+        public static void Where()
+        {
+            var db = GetInstance();
+            //join 
+            var list = db.Queryable<Student, School>((st, sc) => new object[] {
+              JoinType.Left,st.SchoolId==sc.Id
+            })
+            .Where<School>(sc => sc.Id == 1)
+            .Where<Student>(st => st.Id == 1)
+            .Where<Student, School>((st, sc) => st.Id == 1 && sc.Id == 2).ToList();
+
+            //SELECT [st].[Id],[st].[SchoolId],[st].[Name],[st].[CreateTime] FROM [Student] st 
+            //Left JOIN School sc ON ( [st].[SchoolId] = [sc].[Id] )   
+            //WHERE ( [sc].[Id] = @Id0 )  AND ( [st].[Id] = @Id1 )  AND (( [st].[Id] = @Id2 ) AND ( [sc].[Id] = @Id3 ))
+        }
+        public static void Join()
+        {
+
+        }
+        public static void Funs()
+        {
+
+        }
+        public static void Select()
+        {
+
+        }
+
+        public static SqlSugarClient GetInstance()
+        {
+            SqlSugarClient db = new SqlSugarClient(new SystemTablesConfig() { ConnectionString = Config.ConnectionString, DbType = DbType.SqlServer, IsAutoCloseConnection = true });
+            db.Ado.IsEnableLogEvent = true;
+            db.Ado.LogEventStarting = (sql, pars) =>
+            {
+                Console.WriteLine(sql + "\r\n" + db.RewritableMethods.SerializeObject(pars));
+                Console.WriteLine();
+            };
+            return db;
+        }
+    }
+}
diff --git a/OrmTest/Demo/Update.cs b/OrmTest/Demo/Update.cs
new file mode 100644
index 000000000..342713215
--- /dev/null
+++ b/OrmTest/Demo/Update.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest.Demo
+{
+    class Update
+    {
+    }
+}
diff --git a/OrmTest/OrmTest.csproj b/OrmTest/OrmTest.csproj
index b805ef971..b7ff42c83 100644
--- a/OrmTest/OrmTest.csproj
+++ b/OrmTest/OrmTest.csproj
@@ -56,6 +56,10 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.cs" />
+    <Compile Include="Demo\Delete.cs" />
+    <Compile Include="Demo\Insert.cs" />
+    <Compile Include="Demo\Query.cs" />
+    <Compile Include="Demo\Update.cs" />
     <Compile Include="Models\ViewModelStudent.cs" />
     <Compile Include="PerformanceTesting\ChloeORMPerformance.cs" />
     <Compile Include="PerformanceTesting\PerformanceBase.cs" />
@@ -90,9 +94,7 @@
       <Name>SqlSugar</Name>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Demo\" />
-  </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/OrmTest/Program.cs b/OrmTest/Program.cs
index f33242989..f2279c67b 100644
--- a/OrmTest/Program.cs
+++ b/OrmTest/Program.cs
@@ -17,7 +17,7 @@ namespace OrmTest
     {
         static void Main(string[] args)
         {
-            /***Unit Test***/
+            ///***Unit Test***/
             //new Field(1).Init();
             //new Where(1).Init();
             //new Method(1).Init();
@@ -25,16 +25,16 @@ namespace OrmTest
             //new SingleQuery(1).Init();
             //new SelectQuery(1).Init();
             //new AutoClose(1).Init();
-            new Insert(1).Init();
+            //new Insert(1).Init();
             //new Delete(1).Init();
             //new Update(1).Init();
             //new Mapping(1).Init();
 
-            /***Performance Test***/
+            ///***Performance Test***/
             //new SqlSugarPerformance(100).Select();
 
-
-            //Demo 
+            /***Demo***/
+            OrmTest.Demo.Query.Init();
         }
     }
 }
diff --git a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 0ab40d326..1640fa79f 100644
--- a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -44,6 +44,11 @@ namespace SqlSugar
             QueryBuilder.Parameters.AddRange(pars);
             return this;
         }
+        public ISugarQueryable<T> AddParameters(SugarParameter par)
+        {
+            QueryBuilder.Parameters.Add(par);
+            return this;
+        }
 
         public ISugarQueryable<T> AddJoinInfo(string tableName, string shortName, string joinWhere, JoinType type = JoinType.Left)
         {
@@ -222,8 +227,8 @@ namespace SqlSugar
                 {
                     var whereIndex = QueryBuilder.WhereIndex;
                     string parameterName = this.SqlBuilder.SqlParameterKeyWord + "InPara" + whereIndex;
+                    this.AddParameters(new SugarParameter(parameterName, inValues[0]));
                     this.Where(string.Format(QueryBuilder.InTemplate, filed, parameterName));
-                    this.AddParameters(new SqlParameter(parameterName, inValues[0]));
                     QueryBuilder.WhereIndex++;
                 }
                 else