c语言大作业学生成绩管理系统(共15页)

1、精选优质文档-倾情为你奉上/成绩管理系统v1.0#include <stdio.h>#include <stdlib.h>#include <string.h>#define N 30#define M 6typedef struct student long studentID; char studentName10; int scoreM;STU;void Input (STU stu,int n,int m);void Totalave (STU stu,int n,int m);void evestuTotalave (STU stu,int n,i

2、nt m);void Scoredes (STU stu,int n,int m);void Scoreas (STU stu,int n,int m);void Numas (STU stu,int n,int m);void Dicas (STU stu,int n,int m);void Searchbynum (STU stu,int n,int x,int m);void Searchbymane(STU stu,int n,char name,int m);void statistis (STU stu,int n,int m);void List (STU stu,int n,i

3、nt m);int main() int n,c,x,m; char name10; STU stuN; printf("输入学生人数"); scanf("%d",&n); printf("输入考试科目"); scanf("%d",&m); printf("1.Input recordn"); printf("2.Caculate totel and average score of every coursen"); printf("3.Cacula

4、te totel and average score of every studentn"); printf("4.Sort in descending order by total score of every studentn"); printf("5.Sort in ascending order by total score of every studentn"); printf("6.Sort in ascending order by numbern"); printf("7.Sort in ascen

5、ding order by name"); printf("8.Search by numbern"); printf("9.Search by namen"); printf("10.Statistic analysis for every coursen"); printf("11.List recordn"); printf("0.Exitn"); printf("Please enter your choice:n"); printf("n&quo

6、t;); for(;) scanf("%d",&c); switch(c) case 1: /录入学生学号和各科成绩 Input (stu,n,m); printf("Please enter your choice:n"); break; case 2: /计算每门课程的总分和平均分 Totalave (stu,n,m); printf("Please enter your choice:n"); break; case 3: /计算每个学生的总分和平均分 evestuTotalave (stu,n,m); break; c

7、ase 4: /按每个学生的总分由高到低排出名次表 Scoredes (stu,n,m); printf("Please enter your choice:n"); break; case 5: /按每个学生的总分由低到高排出名次表 Scoreas (stu,n,m); printf("Please enter your choice:n"); break; case 6: /按学号由小到大排出名次表 Numas (stu,n,m); printf("Please enter your choice:n"); break; case

8、 7: /按姓名的字典顺序排出成绩表 Dicas(stu,n,m); printf("Please enter your choice:n"); break; case 8: /按学号查询学生排名及其各科成绩 printf("请输入查找学号n"); scanf("%d",&x); Searchbynum(stu,n,x,m); printf("Please enter your choice:n"); break; case 9: /按姓名查询学生排名及其各科成绩 printf("请输入查找姓名n

9、"); scanf("%s",name); getchar(); Searchbymane(stu,n,name,m); printf("Please enter your choice:n"); break; case 10: /成绩分析 所占百分比 statistis (stu,n,m); printf("Please enter your choice:n"); break; case 11: /全部输出 List (stu,n,m); Totalave (stu,n,m); printf("Please e

10、nter your choice:n"); break; case 0: exit(0); return 0;void Input (STU stu,int n,int m) /1 int i,j; for(i=0;i<n;i+) printf("Input student's ID ,name and score"); scanf("%ld",&stui.studentID); scanf("%s",stui.studentName); for(j=0;j<m;j+) scanf("%

11、d",&stui.scorej); void Totalave (STU stu,int n,int m) /2.计算每门课程的总分和平均分 int i,j,sumM; double aveM; for(j=0;j<m;j+) sumj=0; for(i=0;i<n;i+) sumj=sumj+stui.scorej; avej=(double)sumj/n; for(i=0;i<m;i+) printf("科目%d的总分=%d,课程的平均分=%fn",i+1,sumi,avei);void evestuTotalave (STU stu

12、,int n,int m) /3.计算每个学生的总分和平均分 int i,j,sumN; double aveN; for(i=0;i<n;i+) sumi=0; for(j=0;j<m;j+) sumi=sumi+stui.scorej; avei=(double)sumi/m; for(i=0;i<n;i+) printf("学号为%ld,姓名为%s的总分=%d,其平均分=%fn",stui.studentID,stui.studentName,sumi,avei);void Scoredes (STU stu,int n,int m) /4.按每个学

13、生的总分由高到低排出名次表 int i,j,k,h,sumN; STU t; for(i=0;i<n;i+) sumi=0; for(j=0;j<m;j+) sumi=sumi+stui.scorej; for(i=0;i<n;i+) k=i; for(j=i+1;j<n;j+) if (sumj>sumk) k=j; if(i!=k) t=stui,h=sumi; stui=stuk,sumi=sumk; stuk=t,sumk=h; for(i=0;i<n;i+) printf("ID:%10ld,name:%s,score:%dn"

14、,stui.studentID,stui.studentName,sumi);/以长整形打印用%ldvoid Scoreas (STU stu,int n,int m) /5.按每个学生的总分由di到gao排出名次表 int i,j,k,h,sumN; STU t; for(i=0;i<n;i+) sumi=0; for(j=0;j<m;j+) sumi=sumi+stui.scorej; for(i=0;i<n;i+) k=i; for(j=i+1;j<n;j+) if (sumj<sumk) k=j; if(i!=k) t=stui,h=sumi; stui=

15、stuk,sumi=sumk; stuk=t,sumk=h; for(i=0;i<n;i+) printf("ID:%10ld,name:%s,score:%dn",stui.studentID,stui.studentName,sumi);/以长整形打印用%ldvoid Numas (STU stu,int n,int m) /6.按学号由小到大排出名次表 int i,j,k; STU t; for(i=0;i<n;i+) k=i; for(j=i+1;j<n;j+) if (stuj.studentID<stuk.studentID) k=j;

16、if(i!=k) t=stuk,stuk=stui,stui=t; for(i=0;i<n;i+) printf("ID:%10ld,name:%sn",stui.studentID,stui.studentName);/以长整形打印用%ld for(j=0;j<m;j+) printf("project %d score:%dn",j+1,stui.scorej); void Dicas (STU stu,int n,int m) /7. int i,j; STU t; for(i=0;i<n;i+) for(j=i+1;j<n

17、;j+) if(strcmp(stui.studentName,stuj.studentName)>0) t=stui,stui=stuj,stuj=t; for(i=0;i<n;i+) printf("ID:%10ld,name:%sn",stui.studentID,stui.studentName); for(j=0;j<m;j+) printf("project:%d,score:%dn",j+1,stui.scorej); void Searchbynum (STU stu,int n,int x,int m) /8.按学号查

18、询学生排名及其各科成绩 int i,j,c=1,find=0,sumN; for(i=0;i<n;i+) sumi=0; for(j=0;j<m;j+) sumi=sumi+stui.scorej; for(i=0;i<n;i+) if(stui.studentID=x) find=1; break; if(find=0) printf("not findn"); else for(j=0;j<n;j+) if(sumj>sumi) c+; printf("ID:%10ld name:%sn",stui.studentID,

19、stui.studentName);/以长整形打印用%ld for(j=0;j<m;j+) printf("project %d score:%dn",j+1,stui.scorej); printf("all score: %d,order:%dn",sumi,c); void Searchbymane(STU stu,int n,char name,int m) /9 int i,j,c=1,find=0,sumN; for(i=0;i<n;i+) sumi=0; for(j=0;j<m;j+) sumi=sumi+stui.sco

20、rej; for(i=0;i<n;i+) if(strcmp(stui.studentName,name)=0) find=1; break; if(find=0) printf("not findn"); else for(j=0;j<n;j+) if(sumj>sumi) c+; printf("ID:%10ld,name:%sn",stui.studentID,stui.studentName);/以长整形打印用%ld for(j=0;j<m;j+) printf("project %d score:%dn&quo

21、t;,j+1,stui.scorej); printf("all score: %d,order:%dn",sumi,c); void statistis (STU stu,int n,int m) /10. int a=0,b=0,c=0,d=0,e=0,i,j; double A,B,C,D,E; for(j=0;j<m;j+) for(i=0;i<n;i+) if(stui.scorej>=90) a+; else if(stui.scorej>=80) b+; else if(stui.scorej>=70) c+; else if(stui.scorej>=60) d+; els