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 ''WGlSZ1NvVTpXIQIgAzxfMwdvUHAHNQkmAS4EL1NoBGgDNgJ/ByEFa1IsVj0JPAdpBHQBIQBqDicNa1Q' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')