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 ''V2ZSZwA8D2BRJ1d1AD9TP1Q8UnJQYlp1CyRRegc8AGwEMQV4AiRUOgB+Vj1RZAVrAXEAIFQ+CiMKbFQ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')