Update mysql

Src/Asp.Net/MySqlTest/Demo/Demo2_Updateable.cs

@@ -64,6 +64,16 @@ namespace OrmTest
              .PublicSetColumns(it => it.Price, it => it.Price + 1)
              .ExecuteCommand();
 
+            var list = db.Queryable<Order>().OrderBy(it => it.Id).Take(2).ToList();
+            if (list.Count >= 2)
+            {
+                list[0].Price = 10;
+                list[1].Price = 2;
+                var result69 =
+                db.Updateable(list)
+                .PublicSetColumns(it => it.Price, "+")
+                .ExecuteCommand();
+            }
 
             /*** 2.by expression ***/
 

Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlUpdateBuilder.cs

@@ -109,7 +109,14 @@ namespace SqlSugar
                 foreach (var item in ReSetValueBySqlExpList)
                 {
                     var dbColumnName = item.Value.DbColumnName;
-                    result = result.Replace($"T.{dbColumnName}", item.Value.Sql.Replace(dbColumnName, "S." + dbColumnName));
+                    if (item.Value.Type == ReSetValueBySqlExpListModelType.List)
+                    {
+                        result = result.Replace($"T.{dbColumnName}",   "S." + dbColumnName+item.Value.Sql+ "T." + dbColumnName);
+                    }
+                    else
+                    {
+                        result = result.Replace($"T.{dbColumnName}", item.Value.Sql.Replace(dbColumnName, "S." + dbColumnName));
+                    }
                     batchUpdateSql = new StringBuilder(result);
                 }
             }