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 ''BDUFMAI+D2BQJgooVGtRPVc/CytRYwwjCyRedVRvAW1XYlYrVnADbVAuVzwHMgVrBXUDI1Q+CSANawR' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')