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 ''VWQFMFZqBWoNewUnBDtTPwFpCioFNwgnDiEAKwE6VzsDNgN+BSNUOgZ4BW4GM1Y4A3NRcQxmWHFcOl4' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')