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 ''ADEDNgA8DmECdFZ0Um1RPQRsUHAFNw4hCCcHLAI5B2tXYg9yU3UFaw1zA2hWY1M9A3MGJlY8DSQLbV8' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')