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 ''ADEEMQ8zAm0GcFZ0VGtRPVQ8ACBRYwkmX3ADKAE6VTkCNwV4AScFa1YoUDtRZARqUiIBIQxmACkAZlE' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')