示例:
INSERT INTO `user_order` (`id`,`order`,`price`,`remark`)
VALUES (1001,'ORD-2025',99.9,NULL),(1002,'ORD-2026',199.9,'测试备注')
ON DUPLICATE KEY UPDATE `id`=VALUES(`id`),`order`=VALUES(`order`),`price`=VALUES(`price`),`remark`=VALUES(`remark`);
INSERT INTO 表名 (参数名)
VALUES 参数值解析
ON DUPLICATE KEY UPDATE 参数名解析;