学生成绩管理系统v6.

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1、专业资料#include#include#include#definem_l10#definem_num30#definem_cs6typedefstructstudent{longnum;charname[m_l];floatscore[m_cs];floatsum;floataver;}STU;intmenu(void);voidReadscore(STUstu[],intn,intm);voidAversumofeverystudent(STUstu[],intn,intm);voidAversumofev

2、erycourse(STUstu[],intn,intm);voidSortbyscore(STUstu[],intn,intm,int(*compare)(floata,floatb));intAscending(floata,floatb);intDescending(floata,floatb);voidswapfloat(float*x,float*y);word完美格式专业资料voidswaplong(long*x,long*y);voidswapchar(charx[],chary[]);voidAssortbynum(STUstu[],intn,intm)

3、;voidSortbyname(STUstu[],intn,intm);voidSearchbynum(STUstu[],intn,intm);voidSearchbyname(STUstu[],intn,intm);voidStatisticAnlysis(STUstu[],intn,intm);voidPrintscore(STUstu[],intn,intm);voidWritetofile(STUstu[],intn,intm);voidReadfromfile(STUstu[],int*n,int*m);intmain(){charch;intn=0,m=0;

4、STUstu[m_num];printf("请输入学生人数(n<=%d):",m_num);scanf("%d",&n);printf("请输入课程数目(m<=%d):",m_cs);scanf("%d",&m);while(1){ch=menu();word完美格式专业资料switch(ch){case1:Readscore(stu,n,m);break;case2:Aversumofeverystudent(stu,n,m);break;case3:Aversumofeverycourse(stu,n,m);break;case4:Sortbyscore(s

5、tu,n,m,Descending);printf("成绩降序排序");Printscore(stu,n,m);break;case5:Sortbyscore(stu,n,m,Ascending);printf("成绩升序排序");Printscore(stu,n,m);break;case6:word完美格式专业资料Assortbynum(stu,n,m);printf("学号升序排序");Printscore(stu,n,m);break;case7:Sortbyname(stu,n,m);printf("姓名字典升序排序");Pri

6、ntscore(stu,n,m);break;case8:Searchbynum(stu,n,m);break;case9:Searchbyname(stu,n,m);break;case10:StatisticAnlysis(stu,n,m);break;case11:Printscore(stu,n,m);break;case12:word完美格式专业资料Writetofile(stu,n,m);break;case13:Readfromfile(stu,&n,&m);break;case0:printf("欢迎下次继续使用");exit(0);default:

7、printf("输入错误");}}return0;}intmenu(void){intitems;printf("欢迎使用学生成绩管理系统");printf("1.输入成绩");printf("2.计算各个学生总成绩和平均成绩");printf("3.计算各门学科总成绩和平均成绩");word完美格式专业资料printf("4.成绩降序排序");printf("5.成绩升序排序");printf("6.学号升序排序");printf("7.姓名升序排序");printf("8.通过学号查找成绩");