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 ''VmdSZ1VpBWpXIQspUm0DbwVtV3cBMwgnCCcDKAoxUT0DNlEsVnBUOgR6C2BVYARqVycGJlM5DSQAZlA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')