Student

代码说明：

   编程实现： 1）编写Student类，主要属性包括学号、姓名、成绩 2）编写Score类，主要属性包括：课程、成绩 3）模拟期末考试的成绩统计应用场景，要求可以输入所有成 绩（可以界面输入，也可以Excel导入），要求输出每门课程的所有学生的平均成绩。 4）输出某门课程的最高成绩，最低成绩 5）可以查询某个学生的所有成绩。(Programming: 1) preparation of the Student class, the main attributes include Student ID, name, performance 2) to prepare Score category, key attributes include: curriculum, achievement 3) statistical simulation of the final exam scenarios, requirements can enter all the results (you can input interface, you can also import Excel), required output of all students in each course grade point average. Highest score 4) output of a course, the lowest score 5) can check all the results of a student.)