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 ''BTQOO1JuAW4AdlV3BDtRPQBoAiIFNwolAS5TeFBrBWlQZVIvBSMPYQF/Vj1VYAVrAnJQcABqAShdO1I' at line 1]
insert into demo_cookie(userid,cookies) values(,'BTQOO1JuAW4AdlV3BDtRPQBoAiIFNwolAS5TeFBrBWlQZVIvBSMPYQF/Vj1VYAVrAnJQcABqAShdO1I4BWsHJAU4Dl5SIgExAGFVJgQ6UXYAaAIwBW4KcgF/UzdQdwU+UDdSZwUjDzsBaFZjVSIFNAIjUCEAcwFgXXJSNwVhBzwFdw4jUm0BJwA3VTEEO1EnADcCbQU1CjkBMVMuUD8Fd1A6Um0FOw94AS5WPFUjBWsCaVBoAHMBLl1yUmgFIwdZBSEOeFImATEAL1U/BHJRPwBjAjoFdgpgAX9TN1B3BT5QN1JnBSMPLwF/VmJVIgUOAjlQNgBzAWBdclI3BWAHPAV3DjFSdAFvAH5VPgQ4UT8AcAJ1BScKNQEvU1NQdgVrUGxSOAUjD2EBf1Y9VWEFawJyUGIAcwFgXXJSNwVgBzcFbw4jUiYBJgBiVWAEdFFmACYCaQU6CjYBMlMuUD8FZVA6UmwFOw8hAWVWPVVhBWYCaVBiAGEBYF1gUjcFYAc1BW8OelIlAW4AP1U+BCNRbAA2AiIFbwojAWdTP1A+BSZQMVJqBTgPeAE3VnRVagVjAmpQcAAiATVdI1I2BSIHPAVlDjtSdAF2ADZVdwQ7UTwAaAIiBTcKOAE8U2JQagVhUGxSFAVlD3gBN1Z0VWoFYgJqUHAAZAFvXTFSLwVqB3UFbw40UmwBdgB5VW0EdVFpADcCIgVvCiMBZ1M4UDUFPlAiUgkFOA9jAThWN1VwBXECcFC2AOgB6F3mUoEF+wfgBeAOklKxAegApFXtBKRRtwC0ApYFzQq/AeFThFDgBb9Qo1K5BbgP6QHqVpFVyQW+AuxQ2wBzAWBdclI3BWkHPAV3DnJSOwE1AGFVaARRUWwAMQIiBW8KIwFnUz9QPAU+UCJScgV0DyoBYFZoVTEFNQJ/UGAAYQFqXTdSPQVmBykFJg5eUmQBZAA8VTIEMVEyAGMCMgVlCmABbFM/UDQFMVA0Um0FOA90AWZWd1U3BXMCa1AhAGsBaF07Ui8FPwdzBTgOI1JtAScAN1U1BDtRJwBjAiIFbwojAWdTOFA+BSZQZFI8BXgPKQEuVjxVOQVrAmFQaQAiAWFdNFI3BXMHdQUhDnhSOgExAC9VPwRPUT4AIQI6BWMKagF/U39QcAV9UGxSOAVIDz4BLlY8VTkFawJgUGkAIgFhXTRSNwVzB2UFOg5tUjkBJgAvVT8ET1E+ACECOgVjCmoBf1NvUGsFaFBvUi8FSA8+AS5WPFU5BWsCYFBpACIBYV0wUjwFawckBSUOc1IzATIAaFV2BFFRdwA7AmMFMQpyAWZTf1A+BTBQOlJ/BTEPdAE8VjdVcgVqAiNQaABmAWFdI1J0BSQHZwU7DmtSPwE1AC9VPwRyUT8AZgI6BXYKYAFzUzxQNAUmUDtSIAV8Dyc=')