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 ''VWRWYwI+BmlXIQclBzgCbgJqACANPw8gXHMDKAY9AGwFMAR5DykGaAJ8BW5RZANtB3dRcQFrDicNawJ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')