数据查询出错，错误信息已记录，
并反馈给管理员。请返回重试！
select * from demo_product_type2 where id=
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 (1064)
并反馈给管理员。请返回重试！
select * from demo_product_type2 where id=
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 (1064)