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 ''UWBSZwA8UzwEcgYkVmkHawdvAyMHNQ8gW3RWfVFqAW1VYAJ/DigEagJ8BG8GM1Y4Dn5SclA6CiMLbVY' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')