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 ''UWAOOwU5BWoCdAooBjleMlA4VnYENg4hAC8DKFBrVTlYbQ5zAiQPYVEvVj0ANV4wVCRRcQBqW3JfOV4' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')