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 ''U2JTZgY6UD9XIQQmBDtfMwRsASEBMwwjDiFRegA7VjpZbAZ7UnRSPAR6Bm0FMFM9Dn4LKwRuWHFfOQV' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')