| 源码简介： |
①能对成绩进行录入和修改；②能计算每个学生的平均成绩以及各门功课的平均成绩；③能根据学生的学号来查询该学生的成绩；④能删除该学生的记录；⑤能根据每个学生的平均成绩来他们进行排序。-① able to score for entry and modification ② able to calculate each student' s grade point average and the average score of all the subjects ③ according to the number of students to query the results of the students ④ can delete the student' s record ⑤ can according to each student' s grade point average to sort them.
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