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 ''BDUOOwM/DmEAdlJwU2xSPgFpAyMENl9wX3BTeAc8UDxQZQ9yVHJUOgN9Vj0FMFE/AHAAIFc9DidcOlQ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')