diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index 4854f49c..132d875e 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/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>
diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
index 8ea5fe0f..e2b66169 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
@@ -159,6 +159,13 @@ namespace FreeSql.Tests
         [Fact]
         public void Test03()
         {
+            var testStringFormat = g.sqlite.Select<Edi>().First(a => new {
+                str = $"x{a.Id}_{DateTime.Now.ToString("yyyyMM")}z",
+                str2 = string.Format("{0}x{0}_{1}z", a.Id, DateTime.Now.ToString("yyyyMM"))
+            });
+
+
+
             var sql123 = g.sqlserver.Select<Edi>()
 
                 .WithSql(
diff --git a/FreeSql/Internal/CommonExpression.cs b/FreeSql/Internal/CommonExpression.cs
index 8ca5c1c0..9cf22a92 100644
--- a/FreeSql/Internal/CommonExpression.cs
+++ b/FreeSql/Internal/CommonExpression.cs
@@ -716,7 +716,31 @@ namespace FreeSql.Internal
                     string other3Exp = null;
                     switch (callType.FullName)
                     {
-                        case "System.String": other3Exp = ExpressionLambdaToSqlCallString(exp3, tsc); break;
+                        case "System.String":
+                            //$"{id}_{name}"
+                            if (exp3.Method.Name == "Format" && exp3.Object == null && exp3.Arguments[0].NodeType == ExpressionType.Constant)
+                            {
+                                if (exp3.Arguments.Count == 1) return ExpressionLambdaToSql(exp3.Arguments[0], tsc);
+                                var exp3Args0 = (exp3.Arguments[0] as ConstantExpression)?.Value?.ToString().Replace("{{", "{{_freesql_tMp_fLag_");
+                                var exp3Args1n = exp3.Arguments.Where((a, z) => z > 0).Select(a => ExpressionLambdaToSql(a, tsc)).ToArray();
+                                var exp3Args0Spt = Regex.Split(exp3Args0, @"{(\d+)}");
+                                var exp3ArgsConcatType = new Type[exp3Args0Spt.Length];
+                                exp3Args0Spt[0] = _common.FormatSql("{0}", exp3Args0Spt[0].Replace("{{_freesql_tMp_fLag_", "{{"));
+                                exp3ArgsConcatType[0] = typeof(string);
+                                for (var exp3Args0SptIndex = 1; exp3Args0SptIndex < exp3Args0Spt.Length; exp3Args0SptIndex += 2)
+                                {
+                                    var exp3Args1nIndex = int.Parse(exp3Args0Spt[exp3Args0SptIndex]);
+                                    exp3Args0Spt[exp3Args0SptIndex] = exp3Args1n[exp3Args1nIndex];
+                                    var expArgsType = exp3.Arguments[exp3Args1nIndex + 1];
+                                    exp3ArgsConcatType[exp3Args0SptIndex] = (expArgsType as UnaryExpression)?.Operand.Type ?? expArgsType.Type;
+
+                                    exp3Args0Spt[exp3Args0SptIndex + 1] = _common.FormatSql("{0}", exp3Args0Spt[exp3Args0SptIndex + 1].Replace("{{_freesql_tMp_fLag_", "{{"));
+                                    exp3ArgsConcatType[exp3Args0SptIndex + 1] = typeof(string);
+                                }
+                                return _common.StringConcat(exp3Args0Spt, exp3ArgsConcatType);
+                            }
+                            other3Exp = ExpressionLambdaToSqlCallString(exp3, tsc); 
+                            break;
                         case "System.Math": other3Exp = ExpressionLambdaToSqlCallMath(exp3, tsc); break;
                         case "System.DateTime": other3Exp = ExpressionLambdaToSqlCallDateTime(exp3, tsc); break;
                         case "System.TimeSpan": other3Exp = ExpressionLambdaToSqlCallTimeSpan(exp3, tsc); break;