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 ''WGlVYAE9AG8Bd1FzAj0Ha1U9UHBTYQgnDiECKVNoDWFRZAB9ACZVO1EvUjkEMQVrA3NXd1Q+XXQBZwN' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')