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 ''BDUANQc7Uj1RJwUnAj1WOg5mCioBMwolDiFXfAU+BGgEMVQpVHIFawxyUjkHMlI8Dn4EJAdtACkMagJ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')