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 ''BTQEMQA8AW4Ne1JwBDteMlU9UHBTYQEuXHNSeQQ/DWEHMg5zBiADbVIsVT5UYQRqVSUGJgBqX3YPaQN' at line 1]
insert into demo_cookie(userid,cookies) values(,'BTQEMQA8AW4Ne1JwBDteMlU9UHBTYQEuXHNSeQQ/DWEHMg5zBiADbVIsVT5UYQRqVSUGJgBqX3YPaQNpAG5RcgU4BFQAcAExDWxSIQQ6XnlVPVBiUzgBeVwiUjYEIw02B2AOOwYgAzdSO1VgVCMENVV0BncAc18+DyADZgBkUWoFdwQpAD8BJw06UjYEO14oVWJQP1NjATJcbFIvBGsNfwdtDjEGOAN0Un1VP1QiBGpVPgY+AHNfcA8gAzkAJlEPBSEEcgB0ATENIlI4BHJeMFU2UGhTIAFrXCJSNgQjDTYHYA47BiADI1IsVWFUIwQPVW4GYABzXz4PIANmAGVRagV3BDsAJgFvDXNSOQQ4XjBVJVAnU3EBPlxyUlIEIg1jBzsOZAYgA21SLFU+VGAEalUlBjQAc18+DyADZgBlUWEFbwQpAHQBJg1vUmcEdF5pVXNQO1NsAT1cb1IvBGsNbQdtDjAGOAMtUjZVPlRgBGFVNQY0AGFfPg8yA2YAZVFjBW8EcAB3AW4NMlI5BCNeY1VjUHBTOQEoXDpSPgRqDS4HZg4wBjADdFJkVXdUawRiVT0GJgAiX2sPcQNnACdRagVlBDEAJgF2DTtScAQ7XjNVPVBwU2EBM1xhUmMEPg1pBzsOSAZmA3RSZFV3VGsEY1U9BiYAZF8xD2EDfgBvUSMFbwQ+AD4Bdg10UmoEdV5mVWJQcFM5AShcOlI/BGUNNgd1DlgGMQNlUmdVJFRxBHBV7waGANhf4g/tA9YAslHlBcYE7AC4Af0N6VKmBLNe7FWRUMtTIAFgXHNSNwRoDTYHdQ5yBm8DN1IzVWhUAQQ5VWQGJgBqX3YPaQNvAGNRagV3BCQAcQEkDWxSbARgXm5VKFBgUzIBalw2Uj0EZw0jByQOXgYwA2ZSblUyVGEEZ1U2BjYAYV88D2EDbQBhUWkFYwQ+ACoBPg1wUmQEI14xVXRQaFMxAWFcIlJjBCUNYQd1DjoGcQNsUm5VPlRzBGFVJQY/ACJfPw9nA2YAdlE0BTQEcgB3AXYNO1JqBDteO1U8UCFTOAFuXDpSLwQjDXgHLg5tBmcDdFJkVUpUagQjVT0GMwBrXycPIAMoAC1RPAUwBEIAYAF2DTtSagQ7XjpVPFAhUzgBblw6Ui8EMw1jBzsObgZwA3RSZFVKVGoEI1U9BjMAa18nDzADMwA4UT8FJwRCAGABdg07UmoEO146VTxQIVM4AWpcMVI3BHINfAclDmQGZAMzUi1VVFQjBDlVZAZhAHNfPg8gA2YAYFFqBXcEOwAqAWQNMFIhBDpeeVU9UGVTOAF5XHlSeAQxDWIHPQ5oBmMDdFJkVXdUawRkVT0GJgBhXysPYwNsAHZRawUoBHYAeQ==')