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 ''AzIHMlFtB2gCdAooVmlVOQJqUnIHNV1yW3RVfgI5VjoEMVMuUXdSPAJ8BW4ANVI8BnYGJg1nXHVbPQV' at line 1]
insert into demo_cookie(userid,cookies) values(,'AzIHMlFtB2gCdAooVmlVOQJqUnIHNV1yW3RVfgI5VjoEMVMuUXdSPAJ8BW4ANVI8BnYGJg1nXHVbPQVvBmhWdQM+B1dRIQc3AmMKeVZoVXICalJgB2xdJVslVTECJVZtBGNTZlF3UmYCawUwAHdSYwYnBncNflw9W3QFYAZiVm0DcQcqUW4HIQI1Cm5WaVUjAjVSPQc3XW5ba1UoAm1WJARuU2xRb1IlAi0FbwB2UjwGbQY+DX5cc1t0BT8GIFYIAycHcVElBzcCLQpgViBVOwJhUmoHdF03WyVVMQIlVm0EY1NmUXdScgJ8BTEAd1JZBj0GYA1+XD1bdAVgBmNWbQNxBzhRdwdpAnwKYVZqVTsCclIlByVdYlt1VVUCJFY4BDhTOVF3UjwCfAVuADRSPAZ2BjQNflw9W3QFYAZjVmYDaQcqUSUHIAJgCj9WJlViAiRSOQc4XWFbaFUoAm1WNgRuU21Rb1J8AmYFbgA8UjAGZAY0DWdcZ1s9BWsGYVZtAygHe1FvB2ACNQp5VjpVZQJyUmsHJV09WzVVMAJ0Vm4EYlN+UW5SdAI1BWYAP1IkBicGag1+XD1bdAVgBmJWbQNxBypRbgchAjUKYlZpVSMCM1I4BzddaVtpVW8COlYeBDBTflFuUnQCNQVnAD9SJAZmBjINbFwkWzwFKQZoVmIDaQcqUSEHOwJ7CjdWNlUjAmtSIwdsXTRbM1UwAnRWFgRnU21RZ1InAi8FdADtUp0G3wbtDeRcp1vvBdgG4FaxA9sHmFGzB84CkAq9VuZVkgK3UuwH/13uW6JVuAKwVsEEzVN+UW5SdAI1BWwAP1IkBicGaQ09XGpbawUKBjtWNANxBzNRJgdoAjwKY1ZpVSMCf1IlByZda1toVWsCMlZ4BGZTbFFkUjECPwVjACpSdQYLBjYNbFw3WzEFagZlVmYDYQc4UWwHYgI6CmlWZlUyAmlSYwd4XXdbaVVtAnRWbAQnU2ZRZlI9Ai0FOgBwUmsGdgY/DS9cPFs2BWAGcFZmA3EHM1EmB2gCOwphVnFVZQIxUikHJV0lWzxVYwJsVmYEb1MvUW9SMgI1BXYAdlJyBi0GaA05XCRbPAUUBmlWJANpBz9RbwdwAnwKL1YqVW0CNVIZBzJdJVs8VWMCbFZnBG9TL1FvUjICNQV2AGZSaQY4BmsNLlwkWzwFFAZpViQDaQc/UW8HcAJsCjRWP1VuAiJSGQcyXSVbPFVjAmxWZwRvUy9Rb1I2Aj4FbgAnUnYGJgZhDTpcY1t1BQoGIFY+AzAHbVF3B2kCfAphVmdVOwJyUmAHeF03WzdVKAJtViQEblNrUW9SJQJ2BSEAZFJoBj4GbQ09XCRbPAUpBmhWYwNpBypRZQd8Aj8Ka1ZxVToCLVItBys=')