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 ''AjNWYwA8D2AHcVd1CDcEaAFpCipWZAgnW3RQewQ/Am5UYVQpUXcHaQR6CmFUYVA+BnYEJAJoWHEBZ1Q' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')