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 ''UmMFMAU5Uj0MegAiAD8Cblc/AiIENgolCSZXfAQ/DWEHMlUoAyVVO1UrAmlTZlE/A3MHJwZsDicAZl8' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')