Trait

org.openurp.edu.grade.course.service

GpaStatService

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trait GpaStatService extends AnyRef

平均绩点统计服务

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  1. abstract def statGpa(std: Student, grades: Iterable[CourseGrade]): StdGpa

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    给定成绩统计平均绩点

  2. abstract def statGpa(std: Student, semesters: Semester*): StdGpa

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    如果semesters不包含元素或者为null则统计所有学期 否则统计学生的在校semesters所包含的学期的平均绩点

    如果semesters不包含元素或者为null则统计所有学期 否则统计学生的在校semesters所包含的学期的平均绩点

         平均绩点为: gpa=(∑(绩点*学分))/∑(学分)
         平均分为: ga=(∑(得分*学分))/∑(学分)
    

  3. abstract def statGpas(stds: Iterable[Student], semesters: Semester*): MultiStdGpa

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    统计多个学生的平均绩点和其他信息 如果semesters不包含元素或者为null则统计这些所有学期 否则统计这些学生的semesters所包含的学期的平均绩点

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