数据库错误: [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 'order by id desc limit 1' at line 1]
select cookies from demo_cookie where userid= order by id desc limit 1

数据库错误: [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]
delete from demo_cookie where userid=

数据库错误: [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 ''UWAOO1NvB2hQJgEjVmkHaw5mBSVTYVt0WnVUfwc8VztZbAJ/BSMAbg1zUToFMFQ6BHRXdwxmDyZbPV8' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')