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 ''UGEEMVNvAW5QJlByAD9fMwBoBycMPgolXHNXfFRvA29WY1EsVXMCbFcpUDtWY1U7UyNSclM5DicAZgJ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')