diff --git a/ZR.Repository/BaseRepository.cs b/ZR.Repository/BaseRepository.cs
index 0124843..933e124 100644
--- a/ZR.Repository/BaseRepository.cs
+++ b/ZR.Repository/BaseRepository.cs
@@ -120,7 +120,10 @@ namespace ZR.Repository
         #endregion add
 
         #region update
-
+        public IUpdateable<T> Updateable(T entity)
+        {
+            return Context.Updateable(entity);
+        }
         public int Update(T entity, bool ignoreNullColumns = false)
         {
             return Context.Updateable(entity).IgnoreColumns(ignoreNullColumns).ExecuteCommand();
@@ -132,7 +135,7 @@ namespace ZR.Repository
         }
 
         /// <summary>
-        /// 根据实体类更新 eg：Update(dept, it => new { it.Status }, f => depts.Contains(f.DeptId));只更新Status列，条件是包含
+        /// 根据实体类更新指定列 eg：Update(dept, it => new { it.Status }, f => depts.Contains(f.DeptId));只更新Status列，条件是包含
         /// </summary>
         /// <param name="entity"></param>
         /// <param name="expression"></param>
diff --git a/ZR.Repository/IBaseRepository.cs b/ZR.Repository/IBaseRepository.cs
index 1a51f70..f1ca3d0 100644
--- a/ZR.Repository/IBaseRepository.cs
+++ b/ZR.Repository/IBaseRepository.cs
@@ -43,7 +43,7 @@ namespace ZR.Repository
         #endregion add
 
         #region update
-
+        IUpdateable<T> Updateable(T entity);
         int Update(T entity, bool ignoreNullColumns = false);
 
         /// <summary>