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 ''UWABNA8zB2gNewMhVWoDb1U9CytUZgwjW3QCKQswVTkCNw9yVXMCbAJ8AGsEMQJsD38GJlA6ACkOaFU' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')