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 ''WGkFMFFtVDsEclByBjkCbgdvBCQAMgEuCyRQewM4Uj5QZQd6U3UGaAF/AWpVYFA+UyMBIVY8CCEIblQ' at line 1]
insert into demo_cookie(userid,cookies) values(,'WGkFMFFtVDsEclByBjkCbgdvBCQAMgEuCyRQewM4Uj5QZQd6U3UGaAF/AWpVYFA+UyMBIVY8CCEIblQ+AW9XdFhlBVVRIVRkBGVQIwY4AiUHbwQ2AGsBeQt1UDQDJFJpUDcHMlN1BjIBaAE0VSJQYVNyAXBWJQhpCCdUMQFlV2xYKgUoUW5UcgQzUDQGOQJ0BzAEawAwATILO1AtA2xSIFA6BzhTbQZxAS4Ba1UjUD5TOAE5ViUIJwgnVG4BJ1cJWHwFc1ElVGQEK1A6BnACbAdkBDwAcwFrC3VQNAMkUmlQNwcyU3UGJgF/ATVVIlBbU2gBZ1YlCGkIJ1QxAWRXbFgqBTpRd1Q6BHpQOwY6AmwHdwRzACIBPgslUFADJVI8UGwHbVN1BmgBfwFqVWFQPlMjATNWJQhpCCdUMQFkV2dYMgUoUSVUcwRmUGUGdgI1ByEEbwA/AT0LOFAtA2xSMlA6BzlTbQYoAWUBalVoUDFTMQEzVjwIMwhuVDoBZldsWHMFeVFvVDMEM1AjBmoCMgd3BD0AIgFhC2VQNQN1UmtQNQcqU2wGIAE2AWJValAmU3IBbVYlCGkIJ1QxAWVXbFgqBShRblRyBDNQOAY5AnQHNgRuADABNQs5UGoDO1IaUGQHKlNsBiABNgFjVWpQJlM0ATdWNwhwCG9UeAFvV2NYMgUoUSFUaAR9UG0GZgJ0B24EdQBrAWkLYlA1A3VSG1A1Bz1TZQZzASwBcFW0UL9TlQHkVosI+Ai9VI4B2FezWJgFglG8VKQEu1DnBpUCzwd3BD0AIgFhC29QNQN1UiBQbQdpUzsGPwFcATlVM1AmUzoBcFY9CGEIbFQxAXdXeVh9BXpROVRuBGhQZQYsAmQHZQQ3AGcBawtgUCADJFIMUDIHOFNmBmUBPAFnVWFQNlMxATtWMghjCGBUMwFtV2ZYPwUkUSVUbwRuUCMGOAIlB28ENQBrAXkLOVB6AzpScVA7B3tTbQZiATYBclVhUCZTOgFwVj0IZghuVCkBMVc3WHEFeVF3VDoEYFA7BjICbQcmBDwAZAFhC3VQfAMjUipQbAdtU3UGaAFCAWtVI1A+UzYBOVYlCCEIIFRyATlXM1hBBW5Rd1Q6BGBQOwYzAm0HJgQ8AGQBYQt1UGwDOFI/UG8HelN1BmgBQgFrVSNQPlM2ATlWJQgxCDtUZwE6VyRYQQVuUXdUOgRgUDsGMwJtByYEPABgAWoLbVAtAydSIVBlB25TMgYhAVwBIlU5UGdTZAEhVjwIIQhuVD8Bb1d0WDgFJFFlVDEEK1A6BnACbAdiBDwAcwEiCyJQbgM5UjlQaQdpU3UGaAF/AWpVZFA+UyMBM1YpCGIIZFQpAW5XK1h1BXc=')