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 ''UGFTZgc7DmEHcQEjU2xSPg9nBSUMPl9wDyAHLAY9VzsCNw9yUnQOYFUrC2BWYwBuUCBWdgVvASgKbAN' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')