- 补充 IUpdate.Set(a => a.Click == 10)，简化 Set 更新单个字段表达式；

FreeSql.Tests/MySql/Curd/MySqlUpdateTest.cs

@@ -115,6 +115,12 @@ namespace FreeSql.Tests.MySql {
 			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("UPDATE `tb_topic` SET `Id` = (`Id` - 10) WHERE (`Id` = 1)", sql);
 
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Clicks` = `Clicks` * 10 / 1 WHERE (`Id` = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE `tb_topic` SET `Id` = 10 WHERE (`Id` = 1)", sql);
+
 			var id = g.mysql.Insert<TestEnumUpdateTb>().AppendData(new TestEnumUpdateTb { type = TestEnumUpdateTbType.sum211 }).ExecuteIdentity();
 			Assert.True(id > 0);
 			sql = g.mysql.Update<TestEnumUpdateTb>().Where(a => a.id == id).Set(a => a.type, TestEnumUpdateTbType.biggit).ToSql().Replace("\r\n", "");

FreeSql.Tests/Oracle/Curd/OracleUpdateTest.cs

@@ -73,6 +73,12 @@ namespace FreeSql.Tests.Oracle {
 
 			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("UPDATE \"TB_TOPIC\" SET \"ID\" = (\"ID\" - 10) WHERE (\"ID\" = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"TB_TOPIC\" SET \"CLICKS\" = \"CLICKS\" * 10 / 1 WHERE (\"ID\" = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"TB_TOPIC\" SET \"ID\" = 10 WHERE (\"ID\" = 1)", sql);
 		}
 		[Fact]
 		public void SetRaw() {

FreeSql.Tests/PostgreSQL/Curd/PostgreSQLUpdateTest.cs

@@ -73,6 +73,12 @@ namespace FreeSql.Tests.PostgreSQL {
 
 			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("UPDATE \"tb_topic\" SET \"id\" = (\"id\" - 10) WHERE (\"id\" = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"tb_topic\" SET \"clicks\" = \"clicks\" * 10 / 1 WHERE (\"id\" = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"tb_topic\" SET \"id\" = 10 WHERE (\"id\" = 1)", sql);
 		}
 		[Fact]
 		public void SetRaw() {

FreeSql.Tests/SqlServer/Curd/SqlServerUpdateTest.cs

@@ -84,6 +84,12 @@ namespace FreeSql.Tests.SqlServer {
 
 			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("UPDATE [tb_topic] SET [Id] = ([Id] - 10) WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = [Clicks] * 10 / 1 WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Id] = 10 WHERE ([Id] = 1)", sql);
 		}
 		[Fact]
 		public void SetRaw() {

FreeSql.Tests/Sqlite/Curd/SqliteUpdateTest.cs

@@ -77,6 +77,12 @@ namespace FreeSql.Tests.Sqlite {
 
 			sql = update.Set(a => a.CreateTime.AddYears(1)).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
 			Assert.Equal("UPDATE \"tb_topic\" SET \"CreateTime\" = datetime(\"CreateTime\",(1)||' years') WHERE (\"Id\" = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"tb_topic\" SET \"Clicks\" = \"Clicks\" * 10 / 1 WHERE (\"Id\" = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE \"tb_topic\" SET \"Id\" = 10 WHERE (\"Id\" = 1)", sql);
 		}
 		[Fact]
 		public void SetRaw() {

FreeSql/Internal/CommonProvider/UpdateProvider.cs

@@ -341,6 +341,10 @@ namespace FreeSql.Internal.CommonProvider {
 			return this;
 		}
 		public IUpdate<T1> Set<TMember>(Expression<Func<T1, TMember>> binaryExpression) {
+			if (binaryExpression?.Body.NodeType == ExpressionType.Equal) {
+				_set.Append(", ").Append(_commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, null, binaryExpression, null));
+				return this;
+			}
 			if (binaryExpression?.Body is BinaryExpression == false &&
 				binaryExpression?.Body.NodeType != ExpressionType.Call) return this;
 			var cols = new List<SelectColumnInfo>();