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 ''AzJVYAI+Uj0EclZ0Um0HawdvAiJTYQ4hXHNUfwY9AGwDNlYrACZXOQxyCmFSZ1M9UiIBIVc9WnMKbFA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')