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 ''UGEANQM/AW4DdQQmBDsEaAFpCipQYggnXXIHLAc8DGBYbVEsAiRTPVUrVT5TZlM9AXEFJVc9DSRaPFQ' at line 1]
insert into demo_cookie(userid,cookies) values(,'UGEANQM/AW4DdQQmBDsEaAFpCipQYggnXXIHLAc8DGBYbVEsAiRTPVUrVT5TZlM9AXEFJVc9DSRaPFQ+VzkFJlBtAFADcwExA2IEdwQ6BCMBaQo4UDsIcF0jB2MHIAw3WD9RZAIkU2dVPFVgUyRTYgEgBXRXJA1sWnVUMVczBT5QIgAtAzwBJwM0BGAEOwRyATYKZVBgCDtdbQd6B2gMflgyUW4CPFMkVXpVP1MlUz0BagU9VyQNIlp1VG5XcQVbUHQAdgN3ATEDLARuBHIEagFiCjJQIwhiXSMHYwcgDDdYP1FkAiRTc1UrVWFTJFNYAToFY1ckDWxadVQxVzIFPlAiAD8DJQFvA30EbwQ4BGoBcQp9UHIIN11zBwcHIQxiWGRROwIkUz1VK1U+U2dTPQFxBTdXJA1sWnVUMVcyBTVQOgAtA3cBJgNhBDEEdAQzAScKYVBvCDRdbgd6B2gMbFgyUW8CPFN9VTFVPlNuUzUBYwU3Vz0NNlo8VDpXMAU+UHsAfAM9AWYDNAR3BGgENAFxCjNQcghoXTMHYgdxDDVYOlF8Aj1TdVViVTZTbFMlASAFaVckDWxadVQxVzMFPlAiAC0DPAEnAzQEbAQ7BHIBMApgUGAIPF1vBz0HPwxEWGxRfAI9U3VVYlU3U2xTJQFmBTNXNg11Wj1UeFc5BTFQOgAtA3MBPQN6BDkEZARyAWgKe1A7CGFdMAdiB3EMOFgwUW4CPlMmVXhVJFOzU5QB6QXjV78N5FrgVKRXjgXjUIwApQPhAeEDnQSyBL0E+QG6Cq1Qswi0XZcHwQdxDDZYe1FkAj5TPFV6VXdTO1NmAT8Fa1dWDT5aZVQpVzgFd1A6ADwDPwFuAywEegR0BCABPwpnUGAINl0uB2oHYww8WD5RbgIxUylVK1VbU2RTNwFiBTFXNg1gWjdUOVczBTxQNAA2AzQBbAM2BGIENwR+ASMKZlBmCHBdOgcrB2kMPlgyUXwCaFNzVTVVJlNtU3QBaQU2VzwNdVo3VClXOAV3UDoAOwM9AXYDagQ0BHgEIwFxCjNQaAhoXTAHYwcgDDdYPVFkAiRTdVUsVX1TOlNiAXEFPFdIDWxadVQxVzQFPlAiAHwDcwEtA2IEMARIBDQBcQozUGgIaF0xB2MHIAw3WD1RZAIkU2VVN1VoUzlTdQFxBTxXSA1sWnVUMVc0BT5QIgBsA2gBOANhBCcESAQ0AXEKM1BoCGhdMQdjByAMN1g5UW8CPFMkVShVdlMzU2EBNgV1V1YNJVpvVGhXZgUmUDsAfAM9AWADNAR3BDEEfgFjCjhQIwhpXXIHYgdkDDdYKlEnAnNTZ1U2VW5TP1NmAXEFPFd1DW1aMlQxVyEFNFAuAD8DNwF2AzUEKAR8BC0=')