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 ''VmcEMQ4yBmkGcAYkVmlVOQdvCipXZV9wCyQAK1FqDGAEMVQpVnBQPlUrAWoGMwBuA3MHJwJoXXRcOgB' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')