一个简单的学生成绩管理系统,在VC和SQL 2000下测试成功,(里面有数据库备份文件,直接还原即可,还原数据库后可以在USERS表里找到帐号和密码.-a simple student performance management system, the VC 2000 and SQL tested successfully, (they have a database backup file, direct reduction, and it would be reduced after th