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 ''BzZVYAI+VDsBd1Z0Aj0FaQNrCytRYwkmXHNWfVBrDWFRZAR5ByEHaVYoAWoHMgRqUiIAIAVvDyYBZwB' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')