界面清晰，易学易做！ 1首先，登入系统！ 有密码和用户名！ 有右键菜单 2成功登入后，方可进行操作！ 灰色菜单变得可用！ 3接着分几个步骤进行！-interface clear, easy to pick up! A First, log in! A password and user name! There are two menus right to log after they operate! Gray menu becomes available! Three points follo

一个成绩记录簿，每个学生信息包括：学号、姓名、成绩-Preparation of a performance log book, each student information include: Student ID, name, performance