摘要: 一、在school数据库中建立四个表: student/teacher/course/score mysql> create table student( -> sno varchar(20) primary key, -> sname varchar(20)not null, -> ssex va 阅读全文
posted @ 2021-12-11 15:12 バカなの 阅读(253) 评论(0) 推荐(0) 编辑