mysql uuid()

-- 插入（无需传 id）
INSERT INTO `user` (`username`, `phone`) VALUES ('zengwenfeng', '13805029595');

-- 查询：用 BIN_TO_UUID() 转为字符串可读
SELECT
BIN_TO_UUID(`id`, 1) AS `id_str`, -- 转换为标准 UUID 字符串
`username`, `phone`, `create_time`
FROM `user`;