CREATE TABLE IF NOT EXISTS `user` (
  `username` varchar(255) NOT NULL,
  `real_name` varchar(255) NOT NULL COMMENT '真名',
  `ID` varchar(255) NOT NULL COMMENT '身份证号',
  `password` varchar(255) NOT NULL COMMENT '密码',
  `tel` varchar(255) NOT NULL COMMENT '电话号码',
   PRIMARY KEY (`id`),
) DEFAULT CHARACTER SET = utf8mb4 COMMENT = '用户信息列表';