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 ''AjNRZAA8VzgEcgMhUm1TP1I6CipUZgolDSJWfVdsA29TZg9yUnQHaQJ8AGsFMFc5UCACIlQ+WHENa14' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')