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 ''UGEBNAM/Am0Ne1ByVGsCbgdvBSUMPl1yCyRSeQoxVztZbA5zBiADbQR6BW5RZAVrDn4FJQdtASgNa14' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')