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 ''ADEBNAU5B2gDdQspUW5eMlM7BiYMPl9wAS5VfgE6BWkEMQZ7VHJUOgB+VT4ANVM9AXFQcFc9X3YJbwd' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')