diff --git a/Examples/base_entity/BaseEntity.cs b/Examples/base_entity/BaseEntity.cs
index e6763f88..54201ec4 100644
--- a/Examples/base_entity/BaseEntity.cs
+++ b/Examples/base_entity/BaseEntity.cs
@@ -48,7 +48,6 @@ public abstract class BaseEntity
     {
         var uow = Orm.CreateUnitOfWork();
         uow.IsolationLevel = level;
-        UnitOfWork.Current.Value = uow;
         return uow;
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
index 31210d4f..1a384f60 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
@@ -404,7 +404,7 @@ namespace FreeSql.Tests
             var tbid = g.sqlite.Select<TaskBuild>().First()?.Id ?? Guid.Empty;
 
             var testarray = new[] { 1, 2, 3 };
-            var tbidsql = g.sqlite.Update<TaskBuild>().Where(a => a.Id == tbid)
+            var tbidsql1 = g.sqlite.Update<TaskBuild>().Where(a => a.Id == tbid)
                 .Set(a => new TaskBuild
                 {
                     FileName = "111",
@@ -412,6 +412,14 @@ namespace FreeSql.Tests
                     OptionsEntity02 = false,
                     OptionsEntity04 = testarray[0]
                 }).ToSql();
+            var tbidsql2 = g.sqlite.Update<TaskBuild>().Where(a => a.Id == tbid)
+                .Set(a => new
+                {
+                    FileName = "111",
+                    TaskName = a.TaskName + "333",
+                    OptionsEntity02 = false,
+                    OptionsEntity04 = testarray[0]
+                }).ToSql();
 
 
             var dkdkdkd = g.oracle.Select<Templates>().ToList();
diff --git a/FreeSql/FreeSql.xml b/FreeSql/FreeSql.xml
index b7748311..e03bc565 100644
--- a/FreeSql/FreeSql.xml
+++ b/FreeSql/FreeSql.xml
@@ -1568,7 +1568,7 @@
             <summary>
             设置列的的新值为基础上增加，格式：Set(a => a.Clicks + 1) 相当于 clicks=clicks+1
             <para></para>
-            指定更新，格式：Set(a => new { Clicks = a.Clicks + 1, Time = DateTime.Now }) 相当于 set clicks=clicks+1,time='2019-06-19....'
+            指定更新，格式：Set(a => new T { Clicks = a.Clicks + 1, Time = DateTime.Now }) 相当于 set clicks=clicks+1,time='2019-06-19....'
             </summary>
             <typeparam name="TMember"></typeparam>
             <param name="exp"></param>
diff --git a/FreeSql/Interface/Curd/IUpdate.cs b/FreeSql/Interface/Curd/IUpdate.cs
index 6e546d4d..26f11dd8 100644
--- a/FreeSql/Interface/Curd/IUpdate.cs
+++ b/FreeSql/Interface/Curd/IUpdate.cs
@@ -77,7 +77,7 @@ namespace FreeSql
         /// <summary>
         /// 设置列的的新值为基础上增加，格式：Set(a => a.Clicks + 1) 相当于 clicks=clicks+1
         /// <para></para>
-        /// 指定更新，格式：Set(a => new { Clicks = a.Clicks + 1, Time = DateTime.Now }) 相当于 set clicks=clicks+1,time='2019-06-19....'
+        /// 指定更新，格式：Set(a => new T { Clicks = a.Clicks + 1, Time = DateTime.Now }) 相当于 set clicks=clicks+1,time='2019-06-19....'
         /// </summary>
         /// <typeparam name="TMember"></typeparam>
         /// <param name="exp"></param>
diff --git a/FreeSql/Internal/CommonProvider/UpdateProvider.cs b/FreeSql/Internal/CommonProvider/UpdateProvider.cs
index 80da28c1..fa470488 100644
--- a/FreeSql/Internal/CommonProvider/UpdateProvider.cs
+++ b/FreeSql/Internal/CommonProvider/UpdateProvider.cs
@@ -435,29 +435,41 @@ namespace FreeSql.Internal.CommonProvider
         {
             var body = exp?.Body;
             var nodeType = body?.NodeType;
-            if (nodeType == ExpressionType.Equal)
+            switch (nodeType)
             {
-                _set.Append(", ").Append(_commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, null, exp, null));
-                return this;
-            }
-
-            if (nodeType == ExpressionType.MemberInit)
-            {
-                var initExp = body as MemberInitExpression;
-                if (initExp.Bindings?.Count > 0)
-                {
-                    for (var a = 0; a < initExp.Bindings.Count; a++)
+                case ExpressionType.Equal:
+                    _set.Append(", ").Append(_commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, null, exp, null));
+                    return this;
+                case ExpressionType.MemberInit:
+                    var initExp = body as MemberInitExpression;
+                    if (initExp.Bindings?.Count > 0)
                     {
-                        var initAssignExp = (initExp.Bindings[a] as MemberAssignment);
-                        if (initAssignExp == null) continue;
-                        var memberName = initExp.Bindings[a].Member.Name;
-                        if (_table.ColumnsByCsIgnore.ContainsKey(memberName)) continue;
-                        if (_table.ColumnsByCs.TryGetValue(memberName, out var col) == false) throw new Exception($"找不到属性：{memberName}");
-                        var memberValue = _commonExpression.ExpressionLambdaToSql(initAssignExp.Expression, new CommonExpression.ExpTSC { });
-                        _setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(memberValue);
+                        for (var a = 0; a < initExp.Bindings.Count; a++)
+                        {
+                            var initAssignExp = (initExp.Bindings[a] as MemberAssignment);
+                            if (initAssignExp == null) continue;
+                            var memberName = initExp.Bindings[a].Member.Name;
+                            if (_table.ColumnsByCsIgnore.ContainsKey(memberName)) continue;
+                            if (_table.ColumnsByCs.TryGetValue(memberName, out var col) == false) throw new Exception($"找不到属性：{memberName}");
+                            var memberValue = _commonExpression.ExpressionLambdaToSql(initAssignExp.Expression, new CommonExpression.ExpTSC { });
+                            _setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(memberValue);
+                        }
                     }
-                }
-                return this;
+                    return this;
+                case ExpressionType.New:
+                    var newExp = body as NewExpression;
+                    if (newExp.Members?.Count > 0)
+                    {
+                        for (var a = 0; a < newExp.Members.Count; a++)
+                        {
+                            var memberName = newExp.Members[a].Name;
+                            if (_table.ColumnsByCsIgnore.ContainsKey(memberName)) continue;
+                            if (_table.ColumnsByCs.TryGetValue(memberName, out var col) == false) throw new Exception($"找不到属性：{memberName}");
+                            var memberValue = _commonExpression.ExpressionLambdaToSql(newExp.Arguments[a], new CommonExpression.ExpTSC { });
+                            _setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(memberValue);
+                        }
+                    }
+                    return this;
             }
             if (body is BinaryExpression == false &&
                 nodeType != ExpressionType.Call) return this;