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 ''VmdRZFFtVzgMegclBDtQPAFpCytQYggnCSYHLAY9AW1UYQZ7BCIGaAR6VzxVYAJsVSVRcVQ+W3JbPVM' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')