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 ''BDVSZwQ4AG8AdgEjAj1fM1Q8ASECMAAvCCcCKQM4UT0HMg5zBCIDbQF/BG8ANV4wUyNVdVM5CSBbPQd' at line 1]
insert into demo_cookie(userid,cookies) values(,'BDVSZwQ4AG8AdgEjAj1fM1Q8ASECMAAvCCcCKQM4UT0HMg5zBCIDbQF/BG8ANV4wUyNVdVM5CSBbPQdtAW8AIwQ5UgIEdAAwAGEBcgI8X3hUPAEzAmkAeAh2AmYDJFFqB2AOOwQiAzcBaAQxAHdeb1NyVSRTIAloW3QHYgFlADsEdlJ/BDsAJgA3AWUCPV8pVGMBbgIyADMIOAJ/A2xRIwdtDjEEOgN0AS4EbgB2XjBTOFVtUyAJJlt0Bz0BJwBeBCBSJARwADAALwFrAnRfMVQ3ATkCcQBqCHYCZgMkUWoHYA47BCIDIwF/BDAAd15VU2hVM1MgCWhbdAdiAWQAOwR2Um0EIgBuAH4BagI+XzFUJAF2AiAAPwgmAgIDJVE/BzsOZAQiA20BfwRvADReMFMjVWdTIAloW3QHYgFkADAEblJ/BHAAJwBiATQCcl9oVHIBagI9ADwIOwJ/A2xRMQdtDjAEOgMtAWUEbwA0XjpTNFVnUzIJaFtmB2IBZAAyBG5SJgRzAG8APwFqAiVfYlRiASECaAApCG4CbgNtUXIHZg4xBDUDdAE3BCYAP144UztVdVNxCT1bJQdjASYAOwRkUmcEIgB3ADYBIwI9XzJUPAEhAjAAMgg1AjMDOVE1BzsOSARkA3QBNwQmAD9eOVM7VXVTNwlnWzYHegFuAHIEblJoBDoAdwB5ATkCc19nVGMBIQJoACkIbgJvA2JRagd1Dk8EMwNlATgEdQAlXipT6VXVU4sJtFuOB8MBswC0BMdSugS8APwA5AH1ArVf7VSQAZoCcQBhCCcCZwNvUWoHdQ5yBG0DNwFgBDkAVV5jU2JVdVM5CSBbPQdrAW0AOwR2UnIEdQAlAGEBPwJmX29UKQExAmMAawhiAm0DYFF/ByQOXgQyA2YBPQRjADVePVMwVWVTMglqWzYHYAFmADcEY1JlBDYAewBnASACYF8pVD0BcAJpAGkIbgJ/AzlRJQc6DiMEOwMlATYEZAA/XihTMFV1UzkJIFs9B2wBbwAjBDBSPAR5ACYALwFrAm5fMVQ3ATgCIABgCGECZwN1USMHIw54BGwDMwEuBG4AS14xU3JVbVM1CWlbJQcrASEAeAQ4UjgESQAxAC8BawJuXzFUNgE4AiAAYAhhAmcDdVEzBzgObQRvAyQBLgRuAEteMVNyVW1TNQlpWyUHOwE6AG0EO1IvBEkAMQAvAWsCbl8xVDYBOAIgAGAIZQJsA21RcgcnDnMEZQMwAWkEJwBVXnhTaFU0U2cJcVs8BysBbwA1BG5SfwQwAHsAPQFgAiVfMFR1ATkCZABgCHYCJAMiUTEHOQ5rBGkDNwEuBG4Adl4wUzVVbVMgCWNbKQdoAWUAIwRvUiAEfQAo')