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 ''UGEGMwY6UzxVI1JwCDcEaARsVXUBM1h3AC9XfFZtDWFSZ1QpU3UAbgR6AmkFMFc5VCRXdwZsWHEBZ1U' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')