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 ''AjMHMgI+VToNewMhAzwDbwVtV3cMPgAvDiEHLFZtUDwEMVMuACYPYQF/AmkIPQBuBnZWdg1nDCUJb1Y' at line 1]
insert into demo_cookie(userid,cookies) values(,'AjMHMgI+VToNewMhAzwDbwVtV3cMPgAvDiEHLFZtUDwEMVMuACYPYQF/AmkIPQBuBnZWdg1nDCUJb1Y8AG4CIQI/B1cCclVlDWwDcAM9AyQFbVdlDGcAeA5wB2NWcVBrBGNTZgAmDzsBaAI3CH8AMQYnVicNfgxtCSZWMwBkAjkCcAcqAj1Vcw06A2cDPAN1BTJXOAw8ADMOPgd6VjlQIgRuU2wAPg94AS4CaAh+AG4GbVZuDX4MIwkmVmwAJgJcAiYHcQJ2VWUNIgNpA3UDbQVmV28MfwBqDnAHY1ZxUGsEY1NmACYPLwF/AjYIfwALBj1WMA1+DG0JJlYzAGUCOQJwBzgCJFU7DXMDaAM/A20FdVcgDC4APw4gBwdWcFA+BDhTOQAmD2EBfwJpCDwAbgZ2VmQNfgxtCSZWMwBlAjICaAcqAnZVcg1vAzYDcwM0BSNXPAwzADwOPQd6VjlQMARuU20APg8hAWUCaQg8AGMGZ1ZkDWwMbQk0VjMAZQIwAmgHcwJ1VToNMgNoAyQDPgUzV3cMZgApDmgHa1Y4UHMEZVNrADcPeAE3AiAINwBmBm5Wdg0vDDgJd1YyACcCOQJiBzICJFUiDTsDIQM8A24FbVd3DD4AMg4zBzZWbFA0BDhTFQBgD3gBNwIgCDcAZwZuVnYNaQxiCWVWKwBvAnACaAc9AjxVIg10AzsDcgM7BTJXdwxmACkOaAdqVjpQawR2UwgAPA9rATwCcwgtAHQGsFbrDcEMvgnXVrsAswKPAvgH4QKDVY0N5QPCA44DvgXyV+cMuwDMDssHelY5UCIEblNkAD4PeAF/Aj4IbAA4BjhWBA01DDUJd1YyACcCOQJhBz4CPFUiDS8DJwN2AzsFOFc0DDkAdQ5gB2hWM1BnBGRTawArDykBUwJhCD0AZQZiVmQNawxnCWdWOABkAjICYgc5Aj9VOQ0uAzgDdgMwBXVXbgwuAGAOYQdiViBQPwQhUzEAJg9hAX8CaQg8AG4GdlZlDX4MbQkmVjMAYAI5AnAHbAJnVXkNcwNwAz0DPgVtV2QMZgApDmgHbVY4UHMEJ1MoAH0PNgFpAnEINgAaBm9WJw1mDGEJb1YrACcCdwIrB2QCY1VJDWQDcAM9Az4FbVdlDGYAKQ5oB21WOFBzBDdTMwBoDzUBfgJxCDYAGgZvVicNZgxhCW9WKwA3AmwCPgdnAnRVSQ1kA3ADPQM+BW1XZQxmACkOaAdpVjNQawR2UywAdg8/AWoCNgh/AAQGJlY9DT8MMwl3VjIAJwI5AmYHMgIkVTANLgNiAzYDdQVsVyYMZwBtDmgHelZ7UCQENVMyAG4PMwFtAnEINgAnBm5WYA1mDHQJZVYnAGQCMwJwBzMCe1V9DX0=')