采用顺序存储结构，实现学生成绩处理的相关问题，包括：学生信息的录入、查询、修改、排序、确定名次以及信息的输出。其中学生信息包括：学号、姓名、四门课、总分、及排名；

排序方法包括：希尔排序、快速排序、选择排序。

-Sequential storage structure, to achieve student performance related issues, including: input student information, query, modify, sort, and output information to determine the ranking. Student information which includes: Student ID, name, four courses, scores, and rankings　sorting method comprising: Hill sort, quick sort, selection sort.