- 修复 $"{a.Code}_{a.Id}" lambda 解析当 {} 多于3个时的 bug（.net 内部机制很坑）；

> 3个 {} 时，Arguments[1..3] 解析出来是分开的
> 4个 {} 时，Arguments[1] 只能解析这个出来，然后 [1] 里面是 NewArray []

FreeSql.DbContext/FreeSql.DbContext.xml

@@ -125,13 +125,6 @@
             清空状态数据
             </summary>
         </member>
-        <member name="M:FreeSql.DbSet`1.RemoveAsync(System.Linq.Expressions.Expression{System.Func{`0,System.Boolean}})">
-            <summary>
-            根据 lambda 条件删除数据
-            </summary>
-            <param name="predicate"></param>
-            <returns></returns>
-        </member>
         <member name="M:FreeSql.DbSet`1.Add(`0)">
             <summary>
             添加
@@ -486,14 +479,5 @@
             <param name="that"></param>
             <returns></returns>
         </member>
-        <member name="M:Microsoft.Extensions.DependencyInjection.FreeSqlRepositoryDependencyInjection.AddFreeRepository(Microsoft.Extensions.DependencyInjection.IServiceCollection,System.Action{FreeSql.FluentDataFilter},System.Reflection.Assembly[])">
-            <summary>
-            批量注入 Repository，可以参考代码自行调整
-            </summary>
-            <param name="services"></param>
-            <param name="globalDataFilter"></param>
-            <param name="assemblies"></param>
-            <returns></returns>
-        </member>
     </members>
 </doc>

FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/MySqlConnectorExpression/StringTest.cs

@@ -75,6 +75,31 @@ WHERE (a.`Id` = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT concat('x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as1, concat('',ifnull((a.`Id` + 1), ''),'x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as2 
+FROM `tb_topic` a 
+WHERE (a.`Id` = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/DamengExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as1, ''||nvl((a.""ID"" + 1), '')||'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/KingbaseES/KingbaseESExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.kingbaseES.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||coalesce(((a.""ID"" + 1))::text, '')||'z-'||coalesce(to_char((a.""CREATETIME"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""TITLE"", '')||''||coalesce(a.""TITLE"", '')||'' as1, ''||coalesce(((a.""ID"" + 1))::text, '')||'x'||coalesce(((a.""ID"" + 1))::text, '')||'z-'||coalesce(to_char((a.""CREATETIME"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""TITLE"", '')||''||coalesce(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/MySqlExpression/StringTest.cs

@@ -75,6 +75,31 @@ WHERE (a.`Id` = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT concat('x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as1, concat('',ifnull((a.`Id` + 1), ''),'x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as2 
+FROM `tb_topic` a 
+WHERE (a.`Id` = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/OracleExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as1, ''||nvl((a.""ID"" + 1), '')||'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/PostgreSQLExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""id"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||coalesce(((a.""id"" + 1))::text, '')||'z-'||coalesce(to_char((a.""createtime"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""title"", '')||''||coalesce(a.""title"", '')||'' as1, ''||coalesce(((a.""id"" + 1))::text, '')||'x'||coalesce(((a.""id"" + 1))::text, '')||'z-'||coalesce(to_char((a.""createtime"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""title"", '')||''||coalesce(a.""title"", '')||'' as2 
+FROM ""tb_topic"" a 
+WHERE (a.""id"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/SqlServerExpression/StringTest.cs

@@ -74,6 +74,31 @@ WHERE (a.[Id] = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT N'x'+isnull(cast((a.[Id] + 1) as varchar), '')+N'z-'+isnull(substring(convert(char(8), cast(a.[CreateTime] as datetime), 112), 1, 6), '')+N''+isnull(a.[Title], '')+N''+isnull(a.[Title], '')+N'' as1, N''+isnull(cast((a.[Id] + 1) as varchar), '')+N'x'+isnull(cast((a.[Id] + 1) as varchar), '')+N'z-'+isnull(substring(convert(char(8), cast(a.[CreateTime] as datetime), 112), 1, 6), '')+N''+isnull(a.[Title], '')+N''+isnull(a.[Title], '')+N'' as2 
+FROM [tb_topic] a 
+WHERE (a.[Id] = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/Dameng/DamengExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.dameng.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as1, ''||nvl((a.""ID"" + 1), '')||'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/MsAccess/MsAccessExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.[Id] = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.msaccess.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'+iif(isnull(cstr((a.[Id] + 1))), '', cstr((a.[Id] + 1)))+'z-'+iif(isnull(format(a.[CreateTime],'yyyyMM')), '', format(a.[CreateTime],'yyyyMM'))+''+iif(isnull(a.[Title]), '', a.[Title])+''+iif(isnull(a.[Title]), '', a.[Title])+'' as as1, ''+iif(isnull(cstr((a.[Id] + 1))), '', cstr((a.[Id] + 1)))+'x'+iif(isnull(cstr((a.[Id] + 1))), '', cstr((a.[Id] + 1)))+'z-'+iif(isnull(format(a.[CreateTime],'yyyyMM')), '', format(a.[CreateTime],'yyyyMM'))+''+iif(isnull(a.[Title]), '', a.[Title])+''+iif(isnull(a.[Title]), '', a.[Title])+'' as as2 
+FROM [tb_topic] a 
+WHERE (a.[Id] = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/MySql/MySqlExpression/StringTest.cs

@@ -75,6 +75,31 @@ WHERE (a.`Id` = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.mysql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT concat('x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as1, concat('',ifnull((a.`Id` + 1), ''),'x',ifnull((a.`Id` + 1), ''),'z-',ifnull(date_format(a.`CreateTime`,'%Y%m'), ''),'',ifnull(a.`Title`, ''),'',ifnull(a.`Title`, ''),'') as2 
+FROM `tb_topic` a 
+WHERE (a.`Id` = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/Oracle/OracleExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.oracle.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as1, ''||nvl((a.""ID"" + 1), '')||'x'||nvl((a.""ID"" + 1), '')||'z-'||nvl(to_char(a.""CREATETIME"",'YYYYMM'), '')||''||nvl(a.""TITLE"", '')||''||nvl(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/PostgreSQL/PostgreSQLExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""id"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.pgsql.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||coalesce(((a.""id"" + 1))::text, '')||'z-'||coalesce(to_char((a.""createtime"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""title"", '')||''||coalesce(a.""title"", '')||'' as1, ''||coalesce(((a.""id"" + 1))::text, '')||'x'||coalesce(((a.""id"" + 1))::text, '')||'z-'||coalesce(to_char((a.""createtime"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""title"", '')||''||coalesce(a.""title"", '')||'' as2 
+FROM ""tb_topic"" a 
+WHERE (a.""id"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/ShenTong/ShenTongExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""ID"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        { 
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.shentong.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||coalesce((a.""ID"" + 1), '')||'z-'||coalesce(to_char((a.""CREATETIME"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""TITLE"", '')||''||coalesce(a.""TITLE"", '')||'' as1, ''||coalesce((a.""ID"" + 1), '')||'x'||coalesce((a.""ID"" + 1), '')||'z-'||coalesce(to_char((a.""CREATETIME"")::timestamp,'YYYYMM'), '')||''||coalesce(a.""TITLE"", '')||''||coalesce(a.""TITLE"", '')||'' as2 
+FROM ""TB_TOPIC"" a 
+WHERE (a.""ID"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs

@@ -88,6 +88,31 @@ WHERE (a.[Id] = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.sqlserver.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT N'x'+isnull(cast((a.[Id] + 1) as varchar), '')+N'z-'+isnull(substring(convert(char(8), cast(a.[CreateTime] as datetime), 112), 1, 6), '')+N''+isnull(a.[Title], '')+N''+isnull(a.[Title], '')+N'' as1, N''+isnull(cast((a.[Id] + 1) as varchar), '')+N'x'+isnull(cast((a.[Id] + 1) as varchar), '')+N'z-'+isnull(substring(convert(char(8), cast(a.[CreateTime] as datetime), 112), 1, 6), '')+N''+isnull(a.[Title], '')+N''+isnull(a.[Title], '')+N'' as2 
+FROM [tb_topic] a 
+WHERE (a.[Id] = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

FreeSql.Tests/FreeSql.Tests/Sqlite/SqliteExpression/StringTest.cs

@@ -73,6 +73,31 @@ WHERE (a.""Id"" = {item.Id})", sql);
             Assert.Equal(string.Format("{0}x{0}z-{1}{2}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title), item2.str2);
         }
 
+        [Fact]
+        public void Format4()
+        {
+            //3<><33> {} ʱ<><CAB1>Arguments <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֿ<C7B7><D6BF><EFBFBD>
+            //4<><34> {} ʱ<><CAB1>Arguments[1] ֻ<>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NewArray []
+            var item = g.sqlite.GetRepository<Topic>().Insert(new Topic { Clicks = 101, Title = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>101", CreateTime = DateTime.Parse("2020-7-5") });
+            var sql = select.WhereDynamic(item).ToSql(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.Equal($@"SELECT 'x'||ifnull((a.""Id"" + 1), '')||'z-'||ifnull(strftime('%Y%m',a.""CreateTime""), '')||''||ifnull(a.""Title"", '')||''||ifnull(a.""Title"", '')||'' as1, ''||ifnull((a.""Id"" + 1), '')||'x'||ifnull((a.""Id"" + 1), '')||'z-'||ifnull(strftime('%Y%m',a.""CreateTime""), '')||''||ifnull(a.""Title"", '')||''||ifnull(a.""Title"", '')||'' as2 
+FROM ""tb_topic"" a 
+WHERE (a.""Id"" = {item.Id})", sql);
+
+            var item2 = select.WhereDynamic(item).First(a => new
+            {
+                str = $"x{a.Id + 1}z-{a.CreateTime.ToString("yyyyMM")}{a.Title}{a.Title}",
+                str2 = string.Format("{0}x{0}z-{1}{2}{3}", a.Id + 1, a.CreateTime.ToString("yyyyMM"), a.Title, a.Title)
+            });
+            Assert.NotNull(item2);
+            Assert.Equal($"x{item.Id + 1}z-{item.CreateTime.ToString("yyyyMM")}{item.Title}{item.Title}", item2.str);
+            Assert.Equal(string.Format("{0}x{0}z-{1}{2}{3}", item.Id + 1, item.CreateTime.ToString("yyyyMM"), item.Title, item.Title), item2.str2);
+        }
+
         [Fact]
         public void Empty()
         {

Providers/FreeSql.Provider.Dameng/DamengExpression.cs

@@ -252,7 +252,11 @@ namespace FreeSql.Dameng
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }

Providers/FreeSql.Provider.MsAccess/MsAccessExpression.cs

@@ -222,7 +222,11 @@ namespace FreeSql.MsAccess
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), exp.Arguments.Select(a => a.Type).ToArray());
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var asql = ((a as UnaryExpression)?.Operand.Type ?? a.Type) == typeof(string) ? $"{ExpressionLambdaToSql(a, tsc)}" : $"cstr({ExpressionLambdaToSql(a, tsc)})";
                             return $"'+{_common.IsNull(asql, "''")}+'";

Providers/FreeSql.Provider.MySql/MySqlExpression.cs

@@ -251,7 +251,11 @@ namespace FreeSql.MySql
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
                         if (exp.Arguments.Count == 1) return ExpressionLambdaToSql(exp.Arguments[0], tsc);
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"',{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")},'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"',{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")},'").ToArray();
                         return $"concat({string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs)})";
                 }
             }

Providers/FreeSql.Provider.Odbc/Dameng/OdbcDamengExpression.cs

@@ -252,7 +252,11 @@ namespace FreeSql.Odbc.Dameng
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }

Providers/FreeSql.Provider.Odbc/KingbaseES/OdbcKingbaseESExpression.cs

@@ -316,7 +316,11 @@ namespace FreeSql.Odbc.KingbaseES
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var atype = (a as UnaryExpression)?.Operand.Type.NullableTypeOrThis() ?? a.Type.NullableTypeOrThis();
                             if (atype == typeof(string)) return $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'";

Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs

@@ -249,7 +249,11 @@ namespace FreeSql.Odbc.MySql
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
                         if (exp.Arguments.Count == 1) return ExpressionLambdaToSql(exp.Arguments[0], tsc);
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"',{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")},'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"',{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")},'").ToArray();
                         return $"concat({string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs)})";
                 }
             }

Providers/FreeSql.Provider.Odbc/Oracle/OdbcOracleExpression.cs

@@ -252,7 +252,11 @@ namespace FreeSql.Odbc.Oracle
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }

Providers/FreeSql.Provider.Odbc/PostgreSQL/OdbcPostgreSQLExpression.cs

@@ -338,7 +338,11 @@ namespace FreeSql.Odbc.PostgreSQL
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var atype = (a as UnaryExpression)?.Operand.Type.NullableTypeOrThis() ?? a.Type.NullableTypeOrThis();
                             if (atype == typeof(string)) return $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'";

Providers/FreeSql.Provider.Odbc/SqlServer/OdbcSqlServerExpression.cs

@@ -261,7 +261,11 @@ namespace FreeSql.Odbc.SqlServer
                         var expArgs0 = ExpressionLambdaToSql(exp.Arguments[0], tsc);
                         if (exp.Arguments.Count == 1) return expArgs0;
                         var nchar = expArgs0.StartsWith("N'") ? "N" : "";
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var atype = (a as UnaryExpression)?.Operand.Type.NullableTypeOrThis() ?? a.Type.NullableTypeOrThis();
                             if (atype == typeof(string)) return $"'+{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}+{nchar}'";

Providers/FreeSql.Provider.Oracle/OracleExpression.cs

@@ -252,7 +252,11 @@ namespace FreeSql.Oracle
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }

Providers/FreeSql.Provider.PostgreSQL/PostgreSQLExpression.cs

@@ -369,7 +369,11 @@ namespace FreeSql.PostgreSQL
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var atype = (a as UnaryExpression)?.Operand.Type.NullableTypeOrThis() ?? a.Type.NullableTypeOrThis();
                             if (atype == typeof(string)) return $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'";

Providers/FreeSql.Provider.ShenTong/ShenTongExpression.cs

@@ -299,7 +299,11 @@ namespace FreeSql.ShenTong
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                             (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }

Providers/FreeSql.Provider.SqlServer/SqlServerExpression.cs

@@ -260,7 +260,11 @@ namespace FreeSql.SqlServer
                         var expArgs0 = ExpressionLambdaToSql(exp.Arguments[0], tsc);
                         if (exp.Arguments.Count == 1) return expArgs0;
                         var nchar = expArgs0.StartsWith("N'") ? "N" : "";
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a =>
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a =>
                         {
                             var atype = (a as UnaryExpression)?.Operand.Type.NullableTypeOrThis() ?? a.Type.NullableTypeOrThis();
                             if (atype == typeof(string)) return $"'+{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}+{nchar}'";

Providers/FreeSql.Provider.Sqlite/SqliteExpression.cs

@@ -248,7 +248,11 @@ namespace FreeSql.Sqlite
                         return _common.StringConcat(exp.Arguments.Select(a => getExp(a)).ToArray(), null);
                     case "Format":
                         if (exp.Arguments[0].NodeType != ExpressionType.Constant) throw new Exception($"未实现函数表达式 {exp} 解析，参数 {exp.Arguments[0]} 必须为常量");
-                        var expArgs = exp.Arguments.Where((a, z) => z > 0).Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
+                        var expArgsHack = exp.Arguments.Count == 2 && exp.Arguments[1].NodeType == ExpressionType.NewArrayInit ?
+                            (exp.Arguments[1] as NewArrayExpression).Expressions : exp.Arguments.Where((a, z) => z > 0);
+                        //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 expArgs = expArgsHack.Select(a => $"'||{_common.IsNull(ExpressionLambdaToSql(a, tsc), "''")}||'").ToArray();
                         return string.Format(ExpressionLambdaToSql(exp.Arguments[0], tsc), expArgs);
                 }
             }