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 ''AjNUYQI+AG9SJAAiBDtUOFQ8AyNRY1p1CiUAKwU+AGxRZAV4AyUAbgxyC2BSZwBuB3cAIABqW3JcOgd' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')