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 ''BzYHMlJuA2wGcFFzAj1RPVc/BCRUZgwjXXJQe1NoBWkANQ9yACYFawN9AGtUYQBuUCBScgBqCiNdOwR' at line 1]
insert into demo_cookie(userid,cookies) values(,'BzYHMlJuA2wGcFFzAj1RPVc/BCRUZgwjXXJQe1NoBWkANQ9yACYFawN9AGtUYQBuUCBScgBqCiNdOwRuVzkBIgc6B1dSIgMzBmdRIgI8UXZXPwQ2VD8MdF0jUDRTdAU+AGcPOgAmBTEDagA1VCMAMVBxUiMAcwprXXIEYVczAToHdQcqUm0DJQYxUTUCPVEnV2AEa1RkDD9dbVAtUzwFdwBqDzAAPgVyAywAalQiAG5QO1JqAHMKJV1yBD5XcQFfByMHcVImAzMGKVE7AnRRP1c0BDxUJwxmXSNQNFN0BT4AZw86ACYFJQN9ADRUIwALUGtSNABzCmtdcgRhVzIBOgd1BzhSdANtBnhROgI+UT9XJwRzVHYMM11zUFBTdQVrADwPZQAmBWsDfQBrVGAAblAgUmAAcwprXXIEYVcyATEHbQcqUiYDJAZkUWQCclFmV3EEb1RrDDBdblAtUzwFZQBqDzEAPgUrA2cAa1RgAGZQMlJgAGEKa11gBGFXMgEzB20Hc1IlA2wGOVE6AiVRbFdhBCRUPgwlXTtQPFM9BSYAYQ8yADQFcgM1ACJUawBmUDhScgAiCj5dIwRgV3ABOgdnBzJSdAN0BjBRcwI9UTxXPwQkVGYMPl1gUGFTaQVhADwPSQBgBXIDNQAiVGsAZ1A4UnIAYwpmXTEEeVc4AXMHbQc9UmwDdAZ/UWkCc1FpV2AEJFQ+DCVdO1A8UzAFPgByD0MAMAVhAzoAcVRxAHRQ6lLSANgKt12mBNZX6gG4B/YH7FLsA/EG41GbAoxR41eZBJlU4wzjXZJQ6FO7Ba0AuQ+lALYFtgOYAMhUcwBvUHFSagBpCmpdIwQoV24BYQc7B2RSBgM/BmhRIgI8UXZXPwQ1VD0MbF0jUCBTcgV0ADwPbwBlBTQDIQBjVGEAZVA0UmAAZgp/XXIEBFcxATAHZgc+UmYDYQY6UTICN1E8VzYEN1Q1DGFdNVA2UzEFKgA6D3AAYwVyAzUAIlRrAGdQOFJyAD8KJV1sBHlXOAFzB20HOVJsA3QGOlEiAjxRdlc/BDJUPwx0XWVQblN+BXcAcg87AG0FagM/AGpUIgBuUDdSagBzCiNddQQiV28BZQd1BzNSGANtBnhROgIwUT9XJwR1VHEML11tUGpTTgVgAHIPOwBtBWoDPgBqVCIAblA3UmoAcwozXW4EN1dsAXIHdQczUhgDbQZ4UToCMFE/VycEZVRqDDpdblB9U04FYAByDzsAbQVqAz4AalQiAG5QM1JhAGsKcl1xBClXZgFmBzIHelIGAyQGYlFjAmJRJ1c+BHVUPwxiXTtQLVM3BSoAYA8wACYFawN9AGtUZgBuUCBSKQAkCjFdbwQxV2oBYQd1BzNSJQNsBj9ROgIlUTVXKwQ2VDUMdF06UHJTegV5')