diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs
index 2b64b531..24ee66d5 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -57,7 +57,7 @@ namespace FreeSql.Tests.MySqlConnectorExpression
         {
             var fsql = g.mysql;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -98,7 +98,7 @@ namespace FreeSql.Tests.MySqlConnectorExpression
         [Fact]
         public void Format()
         {
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -121,9 +121,9 @@ WHERE (a.`Id` = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -281,6 +281,17 @@ WHERE (a.`Id` = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/DamengExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/DamengExpression/StringTest.cs
index a375a82a..9a8a92c3 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/DamengExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/DamengExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.Odbc.DamengExpression
         {
             var fsql = g.dameng;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.Odbc.DamengExpression
         [Fact]
         public void Format()
         {
-            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/StringTest.cs
index 19b84f34..2c284fac 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/OdbcExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/KingbaseES/KingbaseESExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/KingbaseES/KingbaseESExpression/StringTest.cs
index adc32074..50bcc720 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/KingbaseES/KingbaseESExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/KingbaseES/KingbaseESExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.Odbc.KingbaseESExpression
         {
             var fsql = g.kingbaseES;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.Odbc.KingbaseESExpression
         [Fact]
         public void Format()
         {
-            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlExpression/StringTest.cs
index d5488cc4..72a21b95 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -57,7 +57,7 @@ namespace FreeSql.Tests.Odbc.MySqlExpression
         {
             var fsql = g.mysql;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -98,7 +98,7 @@ namespace FreeSql.Tests.Odbc.MySqlExpression
         [Fact]
         public void Format()
         {
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -121,9 +121,9 @@ WHERE (a.`Id` = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -281,6 +281,17 @@ WHERE (a.`Id` = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/OracleExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/OracleExpression/StringTest.cs
index 30346e3b..ff74cd37 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/OracleExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/OracleExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.Odbc.OracleExpression
         {
             var fsql = g.oracle;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.Odbc.OracleExpression
         [Fact]
         public void Format()
         {
-            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs
index f5073512..291aa97c 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.Odbc.PostgreSQLExpression
         {
             var fsql = g.pgsql;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.Odbc.PostgreSQLExpression
         [Fact]
         public void Format()
         {
-            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""id"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""id"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/SqlServerExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/SqlServerExpression/StringTest.cs
index 48644371..4161ee81 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/SqlServerExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/SqlServerExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -56,7 +56,7 @@ namespace FreeSql.Tests.Odbc.SqlServerExpression
         {
             var fsql = g.sqlserver;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -97,7 +97,7 @@ namespace FreeSql.Tests.Odbc.SqlServerExpression
         [Fact]
         public void Format()
         {
-            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -120,9 +120,9 @@ WHERE (a.[Id] = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -190,6 +190,17 @@ WHERE (a.[Id] = {item.Id})", sql);
             list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title)).ToList());
             list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1)).ToList());
             list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name)).ToList());
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Sqlite.Data/Sqlite/SqliteExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Sqlite.Data/Sqlite/SqliteExpression/StringTest.cs
index e1c2e382..d03a6b49 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Sqlite.Data/Sqlite/SqliteExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Sqlite.Data/Sqlite/SqliteExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.SqliteExpression
         {
             var fsql = g.sqlite;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.SqliteExpression
         [Fact]
         public void Format()
         {
-            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""Id"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""Id"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/Dameng/DamengExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/Dameng/DamengExpression/StringTest.cs
index 49d61bd8..63b6e1d1 100644
--- a/FreeSql.Tests/FreeSql.Tests/Dameng/DamengExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Dameng/DamengExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.DamengExpression
         {
             var fsql = g.dameng;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.DamengExpression
         [Fact]
         public void Format()
         {
-            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/Firebird/FirebirdExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/Firebird/FirebirdExpression/StringTest.cs
index 83b41cdc..7ee42826 100644
--- a/FreeSql.Tests/FreeSql.Tests/Firebird/FirebirdExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Firebird/FirebirdExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.FirebirdExpression
         {
             var fsql = g.firebird;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.FirebirdExpression
         [Fact]
         public void Format()
         {
-            var item = g.firebird.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.firebird.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.firebird.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.firebird.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/KingbaseES/KingbaseESExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/KingbaseES/KingbaseESExpression/StringTest.cs
index 084f1cc2..e0f4c991 100644
--- a/FreeSql.Tests/FreeSql.Tests/KingbaseES/KingbaseESExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/KingbaseES/KingbaseESExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.KingbaseESExpression
         {
             var fsql = g.kingbaseES;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.KingbaseESExpression
         [Fact]
         public void Format()
         {
-            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/MsAccess/MsAccessExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/MsAccess/MsAccessExpression/StringTest.cs
index 4a0a063a..121be667 100644
--- a/FreeSql.Tests/FreeSql.Tests/MsAccess/MsAccessExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MsAccess/MsAccessExpression/StringTest.cs
@@ -260,6 +260,17 @@ WHERE (a.[Id] = {item.Id})", sql);
             var ret = fsql.Select<Topic>().Where(a => a.Title.Contains(guid)).ToList();
             Assert.NotEmpty(ret);
             Assert.Equal($"Test{guid}Contains01", ret[0].Title);
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/MySql/MySqlExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/MySql/MySqlExpression/StringTest.cs
index 3a3ab212..f7e65567 100644
--- a/FreeSql.Tests/FreeSql.Tests/MySql/MySqlExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MySql/MySqlExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -57,7 +57,7 @@ namespace FreeSql.Tests.MySqlExpression
         {
             var fsql = g.mysql;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -98,7 +98,7 @@ namespace FreeSql.Tests.MySqlExpression
         [Fact]
         public void Format()
         {
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -121,9 +121,9 @@ WHERE (a.`Id` = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -281,6 +281,17 @@ WHERE (a.`Id` = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/Oracle/OracleExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/Oracle/OracleExpression/StringTest.cs
index c15b5cae..b0483d65 100644
--- a/FreeSql.Tests/FreeSql.Tests/Oracle/OracleExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Oracle/OracleExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.OracleExpression
         {
             var fsql = g.oracle;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.OracleExpression
         [Fact]
         public void Format()
         {
-            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/PostgreSQLExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/PostgreSQLExpression/StringTest.cs
index a4ba705e..4b0fcbeb 100644
--- a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/PostgreSQLExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/PostgreSQLExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.PostgreSQLExpression
         {
             var fsql = g.pgsql;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -99,7 +99,7 @@ namespace FreeSql.Tests.PostgreSQLExpression
         [Fact]
         public void Format()
         {
-            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -122,9 +122,9 @@ WHERE (a.""id"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -282,6 +282,17 @@ WHERE (a.""id"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/ShenTong/ShenTongExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/ShenTong/ShenTongExpression/StringTest.cs
index fc4fd9da..0fd47168 100644
--- a/FreeSql.Tests/FreeSql.Tests/ShenTong/ShenTongExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/ShenTong/ShenTongExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -66,7 +66,7 @@ namespace FreeSql.Tests.ShenTongExpression
         [Fact]
         public void Format()
         {
-            var item = g.shentong.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.shentong.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -89,9 +89,9 @@ WHERE (a.""ID"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         { 
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.shentong.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.shentong.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -249,6 +249,17 @@ WHERE (a.""ID"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs
index cbe09d85..e21d735a 100644
--- a/FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using FreeSql.Tests.DataContext.SqlServer;
 using Microsoft.EntityFrameworkCore.Internal;
 using System;
@@ -71,7 +71,7 @@ namespace FreeSql.Tests.SqlServerExpression
         {
             var fsql = g.sqlserver;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -133,7 +133,7 @@ namespace FreeSql.Tests.SqlServerExpression
                 {
                     w.Id,
                     w.UserName,
-                    当前角色 = string.Join(",", repo.Orm
+                    褰撳墠瑙掕壊 = string.Join(",", repo.Orm
                         .Select<StringJoin02UserRole, StringJoin02Role>()
                         .LeftJoin((b, c) => b.RoleId == c.Id)
                         .Where((b, c) => b.UserId == w.Id)
@@ -142,18 +142,18 @@ namespace FreeSql.Tests.SqlServerExpression
             Assert.Equal(2, result.Count);
             Assert.Equal(users[0].Id, result[0].Id);
             Assert.Equal("user01", result[0].UserName);
-            Assert.Equal("role01,role02,role03", result[0].当前角色);
+            Assert.Equal("role01,role02,role03", result[0].褰撳墠瑙掕壊);
 
             Assert.Equal(users[1].Id, result[1].Id);
             Assert.Equal("user02", result[1].UserName);
-            Assert.Equal("role01,role03", result[1].当前角色);
+            Assert.Equal("role01,role03", result[1].褰撳墠瑙掕壊);
 
             result = repo.Select.ToList(w =>
                 new
                 {
                     w.Id,
                     w.UserName,
-                    当前角色 = string.Join(",", repo.Orm
+                    褰撳墠瑙掕壊 = string.Join(",", repo.Orm
                         .Select<StringJoin02UserRole, StringJoin02Role>()
                         .LeftJoin(b => b.t1.RoleId == b.t2.Id)
                         .Where(b => b.t1.UserId == w.Id)
@@ -162,11 +162,11 @@ namespace FreeSql.Tests.SqlServerExpression
             Assert.Equal(2, result.Count);
             Assert.Equal(users[0].Id, result[0].Id);
             Assert.Equal("user01", result[0].UserName);
-            Assert.Equal("role01,role02,role03", result[0].当前角色);
+            Assert.Equal("role01,role02,role03", result[0].褰撳墠瑙掕壊);
 
             Assert.Equal(users[1].Id, result[1].Id);
             Assert.Equal("user02", result[1].UserName);
-            Assert.Equal("role01,role03", result[1].当前角色);
+            Assert.Equal("role01,role03", result[1].褰撳墠瑙掕壊);
         }
         class StringJoin02User
         {
@@ -223,16 +223,16 @@ namespace FreeSql.Tests.SqlServerExpression
                 {
                     w.Id,
                     w.UserName,
-                    当前角色 = string.Join(",", w.Roles.AsSelect().ToList(b => b.RoleName))
+                    褰撳墠瑙掕壊 = string.Join(",", w.Roles.AsSelect().ToList(b => b.RoleName))
                 });
             Assert.Equal(2, result.Count);
             Assert.Equal(users[0].Id, result[0].Id);
             Assert.Equal("user01", result[0].UserName);
-            Assert.Equal("role01,role02,role03", result[0].当前角色);
+            Assert.Equal("role01,role02,role03", result[0].褰撳墠瑙掕壊);
 
             Assert.Equal(users[1].Id, result[1].Id);
             Assert.Equal("user02", result[1].UserName);
-            Assert.Equal("role01,role03", result[1].当前角色);
+            Assert.Equal("role01,role03", result[1].褰撳墠瑙掕壊);
         }
         class StringJoin03User
         {
@@ -276,7 +276,7 @@ namespace FreeSql.Tests.SqlServerExpression
         [Fact]
         public void Format()
         {
-            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -299,9 +299,9 @@ WHERE (a.[Id] = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -400,6 +400,27 @@ WHERE (a.[Id] = {item.Id})", sql);
             list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.TitleVarchar)).ToList());
             list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.TitleVarchar + 1)).ToList());
             list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.Type.Name)).ToList());
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => a.TitleVarchar.Contains("aaa%")).ToList());
+            list.Add(select.Where(a => a.TitleVarchar.Contains(a.TitleVarchar + "%")).ToList());
+            list.Add(select.Where(a => a.TitleVarchar.Contains(a.TitleVarchar + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.TitleVarchar.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains("aaa%")).ToList());
+            list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.TitleVarchar + "%")).ToList());
+            list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.TitleVarchar + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.TitleVarchar + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/FreeSql.Tests/FreeSql.Tests/Sqlite/SqliteExpression/StringTest.cs b/FreeSql.Tests/FreeSql.Tests/Sqlite/SqliteExpression/StringTest.cs
index e1c2e382..d03a6b49 100644
--- a/FreeSql.Tests/FreeSql.Tests/Sqlite/SqliteExpression/StringTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Sqlite/SqliteExpression/StringTest.cs
@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+锘縰sing FreeSql.DataAnnotations;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -55,7 +55,7 @@ namespace FreeSql.Tests.SqliteExpression
         {
             var fsql = g.sqlite;
             fsql.Delete<StringJoin01>().Where("1=1").ExecuteAffrows();
-            fsql.Insert(new[] { new StringJoin01 { name = "北京" }, new StringJoin01 { name = "上海" }, new StringJoin01 { name = "深圳" }, }).ExecuteAffrows();
+            fsql.Insert(new[] { new StringJoin01 { name = "鍖椾含" }, new StringJoin01 { name = "涓婃捣" }, new StringJoin01 { name = "娣卞湷" }, }).ExecuteAffrows();
 
             var val1 = string.Join(",", fsql.Select<StringJoin01>().ToList(a => a.name));
             var val2 = fsql.Select<StringJoin01>().ToList(a => string.Join(",", fsql.Select<StringJoin01>().As("b").ToList(b => b.name)));
@@ -96,7 +96,7 @@ namespace FreeSql.Tests.SqliteExpression
         [Fact]
         public void Format()
         {
-            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}",
@@ -119,9 +119,9 @@ WHERE (a.""Id"" = {item.Id})", sql);
         [Fact]
         public void Format4()
         {
-            //3个 {} 时，Arguments 解析出来是分开的
-            //4个 {} 时，Arguments[1] 只能解析这个出来，然后里面是 NewArray []
-            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "我是中国人101", CreateTime = DateTime.Parse("2020-7-5") });
+            //3涓� {} 鏃讹紝Arguments 瑙ｆ瀽鍑烘潵鏄垎寮�鐨�
+            //4涓� {} 鏃讹紝Arguments[1] 鍙兘瑙ｆ瀽杩欎釜鍑烘潵锛岀劧鍚庨噷闈㈡槸 NewArray []
+            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "鎴戞槸涓浗浜�101", CreateTime = DateTime.Parse("2020-7-5") });
             var sql = select.WhereDynamic(item).ToSql(a => new
             {
                 str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
@@ -279,6 +279,17 @@ WHERE (a.""Id"" = {item.Id})", sql);
             //SELECT a.`Id` as1, a.`Clicks` as2, a.`TypeGuid` as3, a__Type.`Guid` as4, a__Type.`ParentId` as5, a__Type.`Name` as6, a.`Title` as7, a.`CreateTime` as8
             //FROM `tb_topic` a, `TestTypeInfo` a__Type
             //WHERE((concat(a.`Title`, 'aaa')) LIKE concat('%', a__Type.`Name`, '%'))
+
+
+            list.Add(select.Where(a => a.Title.Contains("%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => a.Title.Contains(a.Type.Name + "%")).ToList());
+
+            list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa" + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1 + "%")).ToList());
+            list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name + "%")).ToList());
         }
         [Fact]
         public void ToLower()
diff --git a/Providers/FreeSql.Provider.ClickHouse/ClickHouseExpression.cs b/Providers/FreeSql.Provider.ClickHouse/ClickHouseExpression.cs
index ee71bd93..aa4c964a 100644
--- a/Providers/FreeSql.Provider.ClickHouse/ClickHouseExpression.cs
+++ b/Providers/FreeSql.Provider.ClickHouse/ClickHouseExpression.cs
@@ -120,7 +120,7 @@ namespace FreeSql.ClickHouse
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -317,6 +317,12 @@ namespace FreeSql.ClickHouse
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"locate({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"locate({args0Value}, {left}) = char_length({args0Value})";
+                            return $"locate({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"concat({args0Value}, '%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"concat('%', {args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Custom/CustomExpression.cs b/Providers/FreeSql.Provider.Custom/CustomExpression.cs
index a3f5c1eb..b367ad64 100644
--- a/Providers/FreeSql.Provider.Custom/CustomExpression.cs
+++ b/Providers/FreeSql.Provider.Custom/CustomExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Custom
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
diff --git a/Providers/FreeSql.Provider.Dameng/DamengExpression.cs b/Providers/FreeSql.Provider.Dameng/DamengExpression.cs
index c2be2bb6..5ff640a9 100644
--- a/Providers/FreeSql.Provider.Dameng/DamengExpression.cs
+++ b/Providers/FreeSql.Provider.Dameng/DamengExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Dameng
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Dameng
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Firebird/FirebirdExpression.cs b/Providers/FreeSql.Provider.Firebird/FirebirdExpression.cs
index 3f9b3573..c28b2000 100644
--- a/Providers/FreeSql.Provider.Firebird/FirebirdExpression.cs
+++ b/Providers/FreeSql.Provider.Firebird/FirebirdExpression.cs
@@ -109,7 +109,7 @@ namespace FreeSql.Firebird
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -288,6 +288,12 @@ namespace FreeSql.Firebird
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"position({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"position({args0Value}, {left}) = char_length({args0Value})";
+                            return $"position({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({args0Value})||'%'")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"'%'||({args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) CONTAINING {args0Value}";
diff --git a/Providers/FreeSql.Provider.GBase/GBaseExpression.cs b/Providers/FreeSql.Provider.GBase/GBaseExpression.cs
index 23068076..deb0dbdc 100644
--- a/Providers/FreeSql.Provider.GBase/GBaseExpression.cs
+++ b/Providers/FreeSql.Provider.GBase/GBaseExpression.cs
@@ -109,7 +109,7 @@ namespace FreeSql.GBase
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -288,6 +288,12 @@ namespace FreeSql.GBase
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = char_length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({args0Value})||'%'")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"'%'||({args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.KingbaseES/KingbaseESExpression.cs b/Providers/FreeSql.Provider.KingbaseES/KingbaseESExpression.cs
index ff566853..1d2127ad 100644
--- a/Providers/FreeSql.Provider.KingbaseES/KingbaseESExpression.cs
+++ b/Providers/FreeSql.Provider.KingbaseES/KingbaseESExpression.cs
@@ -146,7 +146,7 @@ namespace FreeSql.KingbaseES
                                 tsc.SetMapColumnTmp(null);
                                 var args1 = getExp(callExp.Arguments[argIndex]);
                                 var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                                var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                                var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                                 tsc.isNotSetMapColumnTmp = true;
                                 left = objExp == null ? null : getExp(objExp);
                                 tsc.isNotSetMapColumnTmp = false;
@@ -368,6 +368,12 @@ namespace FreeSql.KingbaseES
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
+                            return $"strpos({args0Value}, {left}) > 0";
+                        }
                         var likeOpt = "LIKE";
                         if (exp.Arguments.Count > 1)
                         {
diff --git a/Providers/FreeSql.Provider.MsAccess/MsAccessExpression.cs b/Providers/FreeSql.Provider.MsAccess/MsAccessExpression.cs
index 4b7624c5..bdea3735 100644
--- a/Providers/FreeSql.Provider.MsAccess/MsAccessExpression.cs
+++ b/Providers/FreeSql.Provider.MsAccess/MsAccessExpression.cs
@@ -92,7 +92,7 @@ namespace FreeSql.MsAccess
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -262,6 +262,12 @@ namespace FreeSql.MsAccess
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = len({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({args0Value}+'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'+{args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.MySql/MySqlExpression.cs b/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
index 01a2f7c1..0506abae 100644
--- a/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
+++ b/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
@@ -120,7 +120,7 @@ namespace FreeSql.MySql
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -300,6 +300,12 @@ namespace FreeSql.MySql
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"locate({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"locate({args0Value}, {left}) = char_length({args0Value})";
+                            return $"locate({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"concat({args0Value}, '%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"concat('%', {args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs b/Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs
index 5a669589..5f768696 100644
--- a/Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Dameng
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Odbc.Dameng
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Odbc/Default/OdbcExpression.cs b/Providers/FreeSql.Provider.Odbc/Default/OdbcExpression.cs
index 67adbb3d..49ca81c2 100644
--- a/Providers/FreeSql.Provider.Odbc/Default/OdbcExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/Default/OdbcExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Default
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
diff --git a/Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs b/Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs
index fda2afea..6d36c321 100644
--- a/Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs
@@ -146,7 +146,7 @@ namespace FreeSql.Odbc.KingbaseES
                                 tsc.SetMapColumnTmp(null);
                                 var args1 = getExp(callExp.Arguments[argIndex]);
                                 var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                                var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                                var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                                 tsc.isNotSetMapColumnTmp = true;
                                 left = objExp == null ? null : getExp(objExp);
                                 tsc.isNotSetMapColumnTmp = false;
@@ -368,6 +368,12 @@ namespace FreeSql.Odbc.KingbaseES
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
+                            return $"strpos({args0Value}, {left}) > 0";
+                        }
                         var likeOpt = "LIKE";
                         if (exp.Arguments.Count > 1)
                         {
diff --git a/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs b/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
index 25572732..1e6fdfb8 100644
--- a/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
@@ -118,7 +118,7 @@ namespace FreeSql.Odbc.MySql
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -298,6 +298,12 @@ namespace FreeSql.Odbc.MySql
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"locate({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"locate({args0Value}, {left}) = char_length({args0Value})";
+                            return $"locate({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"concat({args0Value}, '%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"concat('%', {args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs
index 3399c519..e6b7e9da 100644
--- a/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Odbc.Oracle
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Odbc.Oracle
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs b/Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs
index ba8af8db..b5d78775 100644
--- a/Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs
@@ -146,7 +146,7 @@ namespace FreeSql.Odbc.PostgreSQL
                                 tsc.SetMapColumnTmp(null);
                                 var args1 = getExp(callExp.Arguments[argIndex]);
                                 var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                                var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                                var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                                 tsc.isNotSetMapColumnTmp = true;
                                 left = objExp == null ? null : getExp(objExp);
                                 tsc.isNotSetMapColumnTmp = false;
@@ -390,6 +390,12 @@ namespace FreeSql.Odbc.PostgreSQL
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
+                            return $"strpos({args0Value}, {left}) > 0";
+                        }
                         var likeOpt = "LIKE";
                         if (exp.Arguments.Count > 1)
                         {
diff --git a/Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs b/Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs
index 1242eccf..6a938b37 100644
--- a/Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs
@@ -128,7 +128,7 @@ namespace FreeSql.Odbc.SqlServer
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -321,6 +321,12 @@ namespace FreeSql.Odbc.SqlServer
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"charindex({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"charindex({args0Value}, {left}) = len({args0Value})";
+                            return $"charindex({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(cast({args0Value} as nvarchar(max))+'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'+cast({args0Value} as nvarchar(max)))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Oracle/OracleExpression.cs b/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
index 825e9f54..0fa8869f 100644
--- a/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
+++ b/Providers/FreeSql.Provider.Oracle/OracleExpression.cs
@@ -122,7 +122,7 @@ namespace FreeSql.Oracle
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -301,6 +301,12 @@ namespace FreeSql.Oracle
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(to_char({args0Value})||'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'||to_char({args0Value}))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.PostgreSQL/PostgreSQLExpression.cs b/Providers/FreeSql.Provider.PostgreSQL/PostgreSQLExpression.cs
index ca3adb2c..b9b8add0 100644
--- a/Providers/FreeSql.Provider.PostgreSQL/PostgreSQLExpression.cs
+++ b/Providers/FreeSql.Provider.PostgreSQL/PostgreSQLExpression.cs
@@ -177,7 +177,7 @@ namespace FreeSql.PostgreSQL
                                 tsc.SetMapColumnTmp(null);
                                 var args1 = getExp(callExp.Arguments[argIndex]);
                                 var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                                var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                                var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                                 tsc.isNotSetMapColumnTmp = true;
                                 left = objExp == null ? null : getExp(objExp);
                                 tsc.isNotSetMapColumnTmp = false;
@@ -421,6 +421,12 @@ namespace FreeSql.PostgreSQL
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
+                            return $"strpos({args0Value}, {left}) > 0";
+                        }
                         var likeOpt = "LIKE";
                         if (exp.Arguments.Count > 1)
                         {
diff --git a/Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs b/Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs
index ed6864ff..32051a6b 100644
--- a/Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs
+++ b/Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs
@@ -128,7 +128,7 @@ namespace FreeSql.ShenTong
                                 tsc.SetMapColumnTmp(null);
                                 var args1 = getExp(callExp.Arguments[argIndex]);
                                 var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                                var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                                var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                                 tsc.isNotSetMapColumnTmp = true;
                                 left = objExp == null ? null : getExp(objExp);
                                 tsc.isNotSetMapColumnTmp = false;
@@ -345,6 +345,12 @@ namespace FreeSql.ShenTong
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"strpos({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"strpos({args0Value}, {left}) = char_length({args0Value})";
+                            return $"strpos({args0Value}, {left}) > 0";
+                        }
                         var likeOpt = "LIKE";
                         if (exp.Arguments.Count > 1)
                         {
diff --git a/Providers/FreeSql.Provider.SqlServer/SqlServerExpression.cs b/Providers/FreeSql.Provider.SqlServer/SqlServerExpression.cs
index eaaa835c..7ea9853a 100644
--- a/Providers/FreeSql.Provider.SqlServer/SqlServerExpression.cs
+++ b/Providers/FreeSql.Provider.SqlServer/SqlServerExpression.cs
@@ -127,7 +127,7 @@ namespace FreeSql.SqlServer
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -320,6 +320,12 @@ namespace FreeSql.SqlServer
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"charindex({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"charindex({args0Value}, {left}) = len({args0Value})";
+                            return $"charindex({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"(cast({args0Value} as nvarchar(max))+'%')")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"('%'+cast({args0Value} as nvarchar(max)))")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";
diff --git a/Providers/FreeSql.Provider.Sqlite/SqliteExpression.cs b/Providers/FreeSql.Provider.Sqlite/SqliteExpression.cs
index 9c227a34..9a3bb1d0 100644
--- a/Providers/FreeSql.Provider.Sqlite/SqliteExpression.cs
+++ b/Providers/FreeSql.Provider.Sqlite/SqliteExpression.cs
@@ -118,7 +118,7 @@ namespace FreeSql.Sqlite
                         tsc.SetMapColumnTmp(null);
                         var args1 = getExp(callExp.Arguments[argIndex]);
                         var oldMapType = tsc.SetMapTypeReturnOld(tsc.mapTypeTmp);
-                        var oldDbParams = objExp.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
+                        var oldDbParams = objExp?.NodeType == ExpressionType.MemberAccess ? tsc.SetDbParamsReturnOld(null) : null; //#900 UseGenerateCommandParameterWithLambda(true) 瀛愭煡璇� bug銆佷互鍙� #1173 鍙傛暟鍖� bug
                         tsc.isNotSetMapColumnTmp = true;
                         var left = objExp == null ? null : getExp(objExp);
                         tsc.isNotSetMapColumnTmp = false;
@@ -297,6 +297,12 @@ namespace FreeSql.Sqlite
                     case "Contains":
                         var args0Value = getExp(exp.Arguments[0]);
                         if (args0Value == "NULL") return $"({left}) IS NULL";
+                        if (args0Value.Contains("%"))
+                        {
+                            if (exp.Method.Name == "StartsWith") return $"instr({args0Value}, {left}) = 1";
+                            if (exp.Method.Name == "EndsWith") return $"instr({args0Value}, {left}) = length({args0Value})";
+                            return $"instr({args0Value}, {left}) > 0";
+                        }
                         if (exp.Method.Name == "StartsWith") return $"({left}) LIKE {(args0Value.EndsWith("'") ? args0Value.Insert(args0Value.Length - 1, "%") : $"({args0Value})||'%'")}";
                         if (exp.Method.Name == "EndsWith") return $"({left}) LIKE {(args0Value.StartsWith("'") ? args0Value.Insert(1, "%") : $"'%'||({args0Value})")}";
                         if (args0Value.StartsWith("'") && args0Value.EndsWith("'")) return $"({left}) LIKE {args0Value.Insert(1, "%").Insert(args0Value.Length, "%")}";