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 ''WGlUYVZqDmFXIQooUm1WOg9nCioDMVt0W3QAKwI5AW0ANVIvACYBbwF/AGtUYVU7AnIFJQNpDidYPlA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')