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 ''UWADNg4yAG8DdQIgVWpUOA5mUnIGNAEuDyBSeQA7A28EMQN+BCIEalYoAGsDNlE/BnZScgdtCyJYPgd' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')