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 ''WWgANQU5AG8NewspAD9QPFM7ACACMFt0AC8AK1dsBGhWY1YrACZVOwN9UjlVYAJsD39SclE7DyZfOV8' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')