文件名称:2.txt
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1．增加、修改、删除一个学生及成绩信息。
2．显示学生成绩信息。
3．按条件显示学生资料（条件有学号、姓名等）。
4．按条件显示班级最高分数以及对应的学生姓名（条件有课程名）。
5．计算所有学生的平均成绩。-1. Increase, modify or delete a student and achievements information. 2. Show that student achievement information. 3. Show the students the information in accordance with the conditions (the conditions of school number, name, etc.). 4. Classes according to the conditions showed the highest score and the corresponding student name (of course conditions). 5. Calculated the average performance of all students.
2．显示学生成绩信息。
3．按条件显示学生资料（条件有学号、姓名等）。
4．按条件显示班级最高分数以及对应的学生姓名（条件有课程名）。
5．计算所有学生的平均成绩。-1. Increase, modify or delete a student and achievements information. 2. Show that student achievement information. 3. Show the students the information in accordance with the conditions (the conditions of school number, name, etc.). 4. Classes according to the conditions showed the highest score and the corresponding student name (of course conditions). 5. Calculated the average performance of all students.
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2.txt.doc