diff --git a/OrmTest/UnitTest/Query/SelectQuery.cs b/OrmTest/UnitTest/Query/SelectQuery.cs
index 5f49ed324..20e359627 100644
--- a/OrmTest/UnitTest/Query/SelectQuery.cs
+++ b/OrmTest/UnitTest/Query/SelectQuery.cs
@@ -35,16 +35,29 @@ namespace OrmTest.UnitTest
                     Console.WriteLine(sql + " " + pars);
                 };
 
-                var listx = db.Queryable<School, School>((st, st2) => new object[] {
+                var l1 = db.Queryable<School, School>((st, st2) => new object[] {
                            JoinType.Left,st.Id==st2.Id
                     })
                     .Where(st => st.Id > 0)
-                    .Select<School, School, dynamic>((st, st2) => new {stid = st.Id, scId = st2.Id,xx=st }).ToList();
-                return;
-                var list = db.Queryable<School, School>((st, st2) => new object[] {
+                    .Select<School, School, dynamic>((st, st2) => new {stid = st.Id, scId = st2.Id,xx=st }).ToSql();
+
+                base.Check("SELECT  [st].[Id] AS [stid] , [st2].[Id] AS [scId] , [st].[Id] AS [xx_Id] , [st].[Name] AS [xx_Name]  FROM [School] st  Left JOIN School st2  ON ( [st].[Id]  = [st2].[Id] )   WHERE ( [st].[Id]  > @Id0 )"
+                    , new List<SugarParameter>() {
+                        new SugarParameter("@Id0",0)
+                    },l1.Key,l1.Value, "l1错误");
+
+                var l2 = db.Queryable<School, School>((st, st2) => new object[] {
                            JoinType.Left,st.Id==st2.Id
-                    }).Where<Student, School>((st, sc) => st.Id > 0)
-                      .Select(st => new ViewModelStudent { School = st }).ToList();
+                    }).Where<Student, School>((st, st2) => st2.Id > 2)
+                      .Select(st => new ViewModelStudent { School = st }).ToSql();
+
+                base.Check("SELECT  [st].[Id] AS [School_Id] , [st].[Name] AS [School_Name]  FROM [School] st  Left JOIN School st2  ON ( [st].[Id]  = [st2].[Id] )   WHERE ( [st2].[Id]  > @Id0 )",
+                     new List<SugarParameter>() { new SugarParameter("@Id0", 2) },
+                     l2.Key,
+                     l2.Value,
+                     "l2报错"
+                    );
+
 
                 var list2 = db.Queryable<Student>()
                   .Where(st => st.Id > 0)
diff --git a/SqlSugar/Abstract/QueryableProvider/QueryableAccessory.cs b/SqlSugar/Abstract/QueryableProvider/QueryableAccessory.cs
index 24ba017bb..29af3a7af 100644
--- a/SqlSugar/Abstract/QueryableProvider/QueryableAccessory.cs
+++ b/SqlSugar/Abstract/QueryableProvider/QueryableAccessory.cs
@@ -10,6 +10,7 @@ namespace SqlSugar
     public class QueryableAccessory
     {
         protected List<SugarParameter> _Pars;
+        protected ILambdaExpressions _LambdaExpressions;
         protected List<SugarParameter> BasePars
         {
             get
@@ -32,27 +33,6 @@ namespace SqlSugar
                 _Pars = new List<SugarParameter>();
             _Pars.AddRange(pars);
         }
-        protected void Where(Expression expression,SqlSugarClient context,ISqlBuilder builder)
-        {
-            ResolveExpressType type = ResolveExpressType.WhereSingle;
-            if (builder.LambadaQueryBuilder.JoinQueryInfos.IsValuable())
-            {
-                type = ResolveExpressType.WhereMultiple;
-            }
-            ILambdaExpressions resolveExpress = context.LambdaExpressions;
-            resolveExpress.Resolve(expression, type);
-            BasePars.AddRange(resolveExpress.Parameters);
-            builder.LambadaQueryBuilder.WhereInfos.Add(builder.AppendWhereOrAnd(builder.LambadaQueryBuilder.WhereInfos.IsNullOrEmpty(),resolveExpress.Result.GetResultString()));
-            resolveExpress.Clear();
-        }
-
-        protected void Where<T>(string whereString, object whereObj, SqlSugarClient context, ISqlBuilder builder) 
-        {
-            var SqlBuilder = builder;
-            var whereValue = SqlBuilder.LambadaQueryBuilder.WhereInfos;
-            whereValue.Add(SqlBuilder.AppendWhereOrAnd(whereValue.Count == 0, whereString));
-            this.AddPars(whereObj, context);
-        }
 
         protected void SetSelectType(SqlSugarClient context,ISqlBuilder builder)
         {
diff --git a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 0e1946c02..16067a44f 100644
--- a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -9,7 +9,7 @@ using System.Text.RegularExpressions;
 
 namespace SqlSugar
 {
-    public partial class QueryableProvider<T> : QueryableAccessory, ISugarQueryable<T> 
+    public partial class QueryableProvider<T> : QueryableAccessory, ISugarQueryable<T>
     {
         public SqlSugarClient Context { get; set; }
         public IDb Db { get { return Context.Database; } }
@@ -56,45 +56,47 @@ namespace SqlSugar
 
         public virtual ISugarQueryable<T> Where(Expression<Func<T, bool>> expression)
         {
-            base.Where(expression,this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
         public ISugarQueryable<T> Where(string whereString, object whereObj = null)
         {
-            base.Where<T>(whereString, whereObj, this.Context, this.SqlBuilder);
+            this.Where<T>(whereString, whereObj);
             return this;
         }
         public ISugarQueryable<T> Where<T2>(string whereString, object whereObj = null)
         {
-            base.Where<T2>(whereString, whereObj, this.Context, this.SqlBuilder);
+            var whereValue = SqlBuilder.LambadaQueryBuilder.WhereInfos;
+            whereValue.Add(SqlBuilder.AppendWhereOrAnd(whereValue.Count == 0, whereString));
+            this.AddPars(whereObj, this.Context);
             return this;
         }
         public ISugarQueryable<T> Where<T2>(Expression<Func<T2, bool>> expression)
         {
-            base.Where(expression, this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
-        public ISugarQueryable<T> Where<T2, T3>(Expression<Func<T2, T3, bool>> expression) 
+        public ISugarQueryable<T> Where<T2, T3>(Expression<Func<T2, T3, bool>> expression)
         {
-            base.Where(expression, this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
         public ISugarQueryable<T> Where<T2, T3, T4>(Expression<Func<T2, T3, T4, bool>> expression)
         {
-            base.Where(expression, this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
-        public ISugarQueryable<T> Where<T2, T3, T4, T5>(Expression<Func<T2, T3, T4, T5, bool>> expression) 
+        public ISugarQueryable<T> Where<T2, T3, T4, T5>(Expression<Func<T2, T3, T4, T5, bool>> expression)
         {
-            base.Where(expression, this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
-        public ISugarQueryable<T> Where<T2, T3, T4, T5, T6>(Expression<Func<T2, T3, T4, T5, T6, bool>> expression) 
+        public ISugarQueryable<T> Where<T2, T3, T4, T5, T6>(Expression<Func<T2, T3, T4, T5, T6, bool>> expression)
         {
-            base.Where(expression, this.Context, this.SqlBuilder);
+            this._Where(expression);
             return this;
         }
-        public virtual ISugarQueryable<T> WhereIF(bool isWhere,Expression<Func<T, bool>> expression)
+        public virtual ISugarQueryable<T> WhereIF(bool isWhere, Expression<Func<T, bool>> expression)
         {
             if (!isWhere) return this;
             Where<T>(expression);
@@ -103,13 +105,13 @@ namespace SqlSugar
         public ISugarQueryable<T> WhereIF(bool isWhere, string whereString, object whereObj = null)
         {
             if (!isWhere) return this;
-            base.Where<T>(whereString, whereObj, this.Context, this.SqlBuilder);
+            this.Where<T>(whereString, whereObj);
             return this;
         }
-        public ISugarQueryable<T> WhereIF<T2>(bool isWhere, string whereString, object whereObj = null) 
+        public ISugarQueryable<T> WhereIF<T2>(bool isWhere, string whereString, object whereObj = null)
         {
             if (!isWhere) return this;
-            base.Where<T2>(whereString, whereObj, this.Context, this.SqlBuilder);
+            this.Where<T2>(whereString, whereObj);
             return this;
         }
         public ISugarQueryable<T> WhereIF<T2>(bool isWhere, Expression<Func<T2, bool>> expression)
@@ -118,13 +120,13 @@ namespace SqlSugar
             this.Where(expression);
             return this;
         }
-        public ISugarQueryable<T> WhereIF<T2, T3>(bool isWhere, Expression<Func<T2, T3, bool>> expression) 
+        public ISugarQueryable<T> WhereIF<T2, T3>(bool isWhere, Expression<Func<T2, T3, bool>> expression)
         {
             if (!isWhere) return this;
             this.Where(expression);
             return this;
         }
-        public ISugarQueryable<T> WhereIF<T2, T3, T4>(bool isWhere, Expression<Func<T2, T3, T4, bool>> expression) 
+        public ISugarQueryable<T> WhereIF<T2, T3, T4>(bool isWhere, Expression<Func<T2, T3, T4, bool>> expression)
         {
             if (!isWhere) return this;
             this.Where(expression);
@@ -136,7 +138,7 @@ namespace SqlSugar
             this.Where(expression);
             return this;
         }
-        public ISugarQueryable<T> WhereIF<T2, T3, T4, T5, T6>(bool isWhere, Expression<Func<T2, T3, T4, T5, T6, bool>> expression) 
+        public ISugarQueryable<T> WhereIF<T2, T3, T4, T5, T6>(bool isWhere, Expression<Func<T2, T3, T4, T5, T6, bool>> expression)
         {
             if (!isWhere) return this;
             this.Where(expression);
@@ -258,35 +260,35 @@ namespace SqlSugar
             throw new NotImplementedException();
         }
 
-        public ISugarQueryable<TResult> Select<T2, TResult>(Expression<Func<T2, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, TResult>(Expression<Func<T2, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
 
-        public ISugarQueryable<TResult> Select<T2, T3, TResult>(Expression<Func<T2, T3, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, T3, TResult>(Expression<Func<T2, T3, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
 
-        public ISugarQueryable<TResult> Select<T2, T3, T4, TResult>(Expression<Func<T2, T3, T4, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, T3, T4, TResult>(Expression<Func<T2, T3, T4, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
 
-        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, TResult>(Expression<Func<T2, T3, T4, T5, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, TResult>(Expression<Func<T2, T3, T4, T5, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
-        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, T6, TResult>(Expression<Func<T2, T3, T4, T5, T6, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, T6, TResult>(Expression<Func<T2, T3, T4, T5, T6, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
-        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, T6, T7, TResult>(Expression<Func<T2, T3, T4, T5, T6, T7, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<T2, T3, T4, T5, T6, T7, TResult>(Expression<Func<T2, T3, T4, T5, T6, T7, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
 
-        public ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression) 
+        public ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression)
         {
             return SelectMehtod<TResult>(expression);
         }
@@ -346,8 +348,8 @@ namespace SqlSugar
 
         public List<T> ToList()
         {
-            string sql = SqlBuilder.LambadaQueryBuilder.ToSqlString();
-            using (var dataReader = this.Db.GetDataReader(sql, this.Pars.ToArray()))
+            var sqlObj =this.ToSql();
+            using (var dataReader = this.Db.GetDataReader(sqlObj.Key, sqlObj.Value.ToArray()))
             {
                 var reval = this.Bind.DataReaderToList<T>(typeof(T), dataReader, SqlBuilder.LambadaQueryBuilder.SelectCacheKey);
                 return reval;
@@ -368,9 +370,10 @@ namespace SqlSugar
             throw new NotImplementedException();
         }
 
-        public KeyValuePair<string, Dictionary<string, string>> ToSql()
+        public KeyValuePair<string, List<SugarParameter>> ToSql()
         {
-            throw new NotImplementedException();
+            string sql = SqlBuilder.LambadaQueryBuilder.ToSqlString();
+            return new KeyValuePair<string, List<SugarParameter>>(sql, this.Pars);
         }
 
         public DataTable ToDataTable()
@@ -398,6 +401,23 @@ namespace SqlSugar
             throw new NotImplementedException();
         }
 
+        #region 私有方法
+        protected void _Where(Expression expression)
+        {
+            ResolveExpressType type = ResolveExpressType.WhereSingle;
+            if (SqlBuilder.LambadaQueryBuilder.JoinQueryInfos.IsValuable())
+            {
+                type = ResolveExpressType.WhereMultiple;
+            }
+            ILambdaExpressions resolveExpress = this.SqlBuilder.LambadaQueryBuilder.LambdaExpressions;
+            resolveExpress.Resolve(expression, type);
+            BasePars.AddRange(resolveExpress.Parameters);
+            SqlBuilder.LambadaQueryBuilder.WhereInfos.Add(SqlBuilder.AppendWhereOrAnd(SqlBuilder.LambadaQueryBuilder.WhereInfos.IsNullOrEmpty(), resolveExpress.Result.GetResultString()));
+            resolveExpress.Clear();
+        }
   
+        #endregion
+
+
     }
 }
diff --git a/SqlSugar/Abstract/SqlBuilderProvider/DMLBuilder/LambadaQueryBuilder.cs b/SqlSugar/Abstract/SqlBuilderProvider/DMLBuilder/LambadaQueryBuilder.cs
index b2f1623ae..ad9b803a9 100644
--- a/SqlSugar/Abstract/SqlBuilderProvider/DMLBuilder/LambadaQueryBuilder.cs
+++ b/SqlSugar/Abstract/SqlBuilderProvider/DMLBuilder/LambadaQueryBuilder.cs
@@ -8,11 +8,6 @@ namespace SqlSugar
 {
     public abstract class LambadaQueryBuilder : IDMLBuilder
     {
-        public LambadaQueryBuilder()
-        {
-
-        }
-        
         private List<SugarParameter> _QueryPars;
         private List<JoinQueryInfo> _JoinQueryInfos;
         private List<string> _WhereInfos;
@@ -20,6 +15,7 @@ namespace SqlSugar
 
         public StringBuilder Sql { get; set; }
         public SqlSugarClient Context { get; set; }
+        public ILambdaExpressions LambdaExpressions { get; set; }
 
         public ISqlBuilder Builder { get; set; }
         public int? Skip { get; set; }
@@ -85,7 +81,7 @@ namespace SqlSugar
         public virtual string GetSelectValueByExpression()
         {
             var expression = this.SelectValue as Expression;
-            ILambdaExpressions resolveExpress = this.Context.LambdaExpressions;
+            ILambdaExpressions resolveExpress = this.LambdaExpressions;
             var isSingle= Builder.LambadaQueryBuilder.JoinQueryInfos.IsValuable();
             resolveExpress.JoinQueryInfos = Builder.LambadaQueryBuilder.JoinQueryInfos;
             resolveExpress.MappingColumns = Context.MappingColumns;
diff --git a/SqlSugar/Interface/IQueryable.cs b/SqlSugar/Interface/IQueryable.cs
index 50ce9fac9..2a8876b17 100644
--- a/SqlSugar/Interface/IQueryable.cs
+++ b/SqlSugar/Interface/IQueryable.cs
@@ -84,7 +84,7 @@ namespace SqlSugar
         string ToJsonPage(int pageIndex, int pageSize);
         string ToJsonPage(int pageIndex, int pageSize, ref int pageCount);
 
-        KeyValuePair<string, Dictionary<string, string>> ToSql();
+        KeyValuePair<string, List<SugarParameter>> ToSql();
 
 
         DataTable ToDataTable();
diff --git a/SqlSugar/SqlSugarClient.cs b/SqlSugar/SqlSugarClient.cs
index d7be384ac..f714722e7 100644
--- a/SqlSugar/SqlSugarClient.cs
+++ b/SqlSugar/SqlSugarClient.cs
@@ -90,23 +90,7 @@ namespace SqlSugar
                 return _Ado;
             }
         }
-        /// <summary>
-        /// Lambda Expressions operation
-        /// </summary>
-        public virtual ILambdaExpressions LambdaExpressions
-        {
-            get
-            {
-                if (_LambdaExpressions == null)
-                {
-                    var reval = InstanceFactory.GetLambdaExpressions(base.CurrentConnectionConfig);
-                    reval.Context = this;
-                    _LambdaExpressions = reval;
-                    return reval;
-                }
-                return _LambdaExpressions;
-            }
-        }
+
         /// <summary>
         /// Lambda Query operation
         /// </summary>
@@ -120,6 +104,7 @@ namespace SqlSugar
             reval.SqlBuilder.LambadaQueryBuilder.Builder = sqlBuilder;
             reval.SqlBuilder.Context = reval.SqlBuilder.LambadaQueryBuilder.Context = this;
             reval.SqlBuilder.LambadaQueryBuilder.EntityName = typeof(T).Name;
+            reval.SqlBuilder.LambadaQueryBuilder.LambdaExpressions = InstanceFactory.GetLambdaExpressions(base.CurrentConnectionConfig);
             return reval;
         }