diff --git a/Tiobon.Core.Api/Controllers/Base/BaseController.cs b/Tiobon.Core.Api/Controllers/Base/BaseController.cs
index a2f3064b..18ef87b9 100644
--- a/Tiobon.Core.Api/Controllers/Base/BaseController.cs
+++ b/Tiobon.Core.Api/Controllers/Base/BaseController.cs
@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.InteropServices.Marshalling;
 
 namespace Tiobon.Core.Controllers;
 
diff --git a/Tiobon.Core.Api/Controllers/Ghre/Ghre_QuestionController.cs b/Tiobon.Core.Api/Controllers/Ghre/Ghre_QuestionController.cs
index 251c0a47..08027af8 100644
--- a/Tiobon.Core.Api/Controllers/Ghre/Ghre_QuestionController.cs
+++ b/Tiobon.Core.Api/Controllers/Ghre/Ghre_QuestionController.cs
@@ -90,9 +90,7 @@ public class Ghre_QuestionController : BaseController<IGhre_QuestionServices, Gh
     [HttpPut("{Id}")]
     public override async Task<ServiceResult> Put(long Id, [FromBody] EditGhre_QuestionInput editModel)
     {
-        var answers1 = await _ghre_QuestionAnswerServices.Query(d => d.QuestionId == Id);
-        var answerIds = answers1.Select(x => x.Id).ToList();
-        await _ghre_QuestionAnswerServices.DeleteByIds1(answerIds.ToArray());
+        await _ghre_QuestionAnswerServices.Delete(x=>x.QuestionId == Id);
         var answers = editModel.Answers;
         if (answers.Any())
         {
diff --git a/Tiobon.Core.IServices/BASE/IBaseServices.cs b/Tiobon.Core.IServices/BASE/IBaseServices.cs
index 7068fe90..7ed410d0 100644
--- a/Tiobon.Core.IServices/BASE/IBaseServices.cs
+++ b/Tiobon.Core.IServices/BASE/IBaseServices.cs
@@ -103,6 +103,13 @@ namespace Tiobon.Core.IServices.BASE
         Task<bool> DeleteByIds(object[] ids);
         Task<bool> DeleteByIds1(long[] ids);
 
+        /// <summary>
+        /// 根据表达式，删除实体
+        /// </summary>
+        /// <param name="whereExpression"></param>
+        /// <returns></returns>
+        Task<bool> Delete(Expression<Func<TEntity, bool>> whereExpression);
+
         Task<bool> Update(long Id, TEditDto model);
         Task<bool> Update(Dictionary<long, TEditDto> editModels);
         Task<bool> Update(List<TEntity> model);
diff --git a/Tiobon.Core.Repository/BASE/BaseRepository.cs b/Tiobon.Core.Repository/BASE/BaseRepository.cs
index 3f02d129..4b13ef64 100644
--- a/Tiobon.Core.Repository/BASE/BaseRepository.cs
+++ b/Tiobon.Core.Repository/BASE/BaseRepository.cs
@@ -252,6 +252,15 @@ namespace Tiobon.Core.Repository.Base
             return await _db.Deleteable<TEntity>().In(ids).ExecuteCommandHasChangeAsync();
         }
 
+        /// <summary>
+        /// 根据表达式，删除实体
+        /// </summary>
+        /// <param name="id">主键ID</param>
+        /// <returns></returns>
+        public async Task<bool> Delete(Expression<Func<TEntity, bool>> whereExpression)
+        {
+            return await _db.Deleteable<TEntity>().Where(whereExpression).ExecuteCommandHasChangeAsync();
+        }
 
         /// <summary>
         /// 查询所有数据
diff --git a/Tiobon.Core.Repository/BASE/IBaseRepository.cs b/Tiobon.Core.Repository/BASE/IBaseRepository.cs
index d396c93a..04bf9ef9 100644
--- a/Tiobon.Core.Repository/BASE/IBaseRepository.cs
+++ b/Tiobon.Core.Repository/BASE/IBaseRepository.cs
@@ -76,6 +76,13 @@ namespace Tiobon.Core.IRepository.Base
         /// <returns></returns>
         Task<bool> DeleteByIds(object[] ids);
 
+        /// <summary>
+        /// 根据表达式，删除实体
+        /// </summary>
+        /// <param name="whereExpression"></param>
+        /// <returns></returns>
+        Task<bool> Delete(Expression<Func<TEntity, bool>> whereExpression);
+
         /// <summary>
         /// 更新model
         /// </summary>
diff --git a/Tiobon.Core.Services/BASE/BaseServices.cs b/Tiobon.Core.Services/BASE/BaseServices.cs
index 490da9d7..40fca34b 100644
--- a/Tiobon.Core.Services/BASE/BaseServices.cs
+++ b/Tiobon.Core.Services/BASE/BaseServices.cs
@@ -403,6 +403,8 @@ public class BaseServices<TEntity, TEntityDto, TInsertDto, TEditDto> : IBaseServ
         return Mapper.Map(data).ToANew<List<TEntityDto>>();
     }
 
+    #region 新增
+
     /// <summary>
     /// 写入实体数据
     /// </summary>
@@ -452,6 +454,7 @@ public class BaseServices<TEntity, TEntityDto, TInsertDto, TEditDto> : IBaseServ
         });
         return await BaseDal.Add(list);
     }
+    #endregion
 
     /// <summary>
     /// 更新实体数据
@@ -611,6 +614,15 @@ public class BaseServices<TEntity, TEntityDto, TInsertDto, TEditDto> : IBaseServ
         return await BaseDal.Update(entities);
     }
 
+    /// <summary>
+    /// 根据表达式，删除实体
+    /// </summary>
+    /// <param name="whereExpression">表达式</param>
+    /// <returns></returns>
+    public async Task<bool> Delete(Expression<Func<TEntity, bool>> whereExpression)
+    {
+        return await BaseDal.Delete(whereExpression);
+    }
 
     /// <summary>
     /// 查询所有数据
@@ -891,7 +903,7 @@ public class BaseServices<TEntity, TEntityDto, TInsertDto, TEditDto> : IBaseServ
         };
     }
 
-
+    #region 检查表中是否已经存在相同代码的数据
 
     public static void CheckOnly(TEntity entity, long? id = null)
     {
@@ -986,6 +998,7 @@ public class BaseServices<TEntity, TEntityDto, TInsertDto, TEditDto> : IBaseServ
             throw;
         }
     }
+    #endregion
 
     #endregion
 }
\ No newline at end of file