学生成绩管理系统v0

1、实用标准文档/ 成绩治理系统 v3.0/ 能动 1302 王清栋 1306030217#include <stdio.h>#include <stdlib.h>#include <string.h>#define N 30void Input (long num,int score,int n,char name10);void Totalave (int score,int n);void Scoredes (long num,int score,int n,char name10); void Scoreas (long num,int score,in

2、t n,char name10);void Numas (long num,int score,int n,char name10);void Nameorder(long num,int score,int n,char name10) ;void Searchbyno (long num,int score,int n,int x,char name10);void Searchbyname(long num,int score,int n,char c,char name10); void statistis (int score,int n);void List (long num,i

3、nt score,int n,char name10);int main()int n,scoreN,c,x;long numN;char nameN10;char y10;printf(" 输入学生人数 ");scanf("%d",&n);/ getchar();printf("1.Input recordn");printf("2.Caculate totel and average score of every coursen"); printf("3.Sort in descending

4、order by scoren");printf("4.Sort in ascending order by score n");printf("5.Sort in ascending order by numbern");printf("6.Sort in dictionary order by namen"); printf("7.Search by numbern");printf("8.search by namen");printf("9.Statistic ana

5、lysisn");printf("10.List recordn");printf("0.Exitn");printf("Please enter your choice:n"); printf("n");for(;) scanf("%d",&c);switch(c)case 1:/ 录入学生学号和各科成绩Input (num,score,n,name); printf("Please enter your choice:n"); break;case 2:

6、 / 计算每门课程的总分和平均分 Totalave (score,n);printf("Please enter your choice:n"); break;case 3: / 按 chengji 由高到低排知名次表 Scoredes (num,score,n,name);printf("Please enter your choice:n"); break;case 4: / 按 chengji 由低到高排知名次表 Scoreas (num,score,n,name);printf("Please enter your choice:n&q

7、uot;); break;case 5:/ 按学号由小到大排知名次表Numas (num,score,n,name); printf("Please enter your choice:n"); break;case 6: / 按学号由小到大排知名次表 Nameorder (num,score,n,name);printf("Please enter your choice:n"); break;case 7: / 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",&a

8、mp;x);Searchbyno (num,score,n,x,name); printf("Please enter your choice:n");break;case 8: / 按姓名查询学生排名及其各科成绩 printf(" 请输入查找姓名 n");getchar(); gets(y);Searchbyname (num,score,n,y,name); break;printf("Please enter your choice:n");case 9: / 成绩分析 所占百分比 statistis (score,n);pri

9、ntf("Please enter your choice:n"); break;case 10: / 全部输出List (num,score,n,name); printf("Please enter your choice:n");break;文案大全case 0: exit(0);return 0;void Input (long num,int score,int n,char name10) /1int i;for(i=0;i<n;i+)printf("Input student's ID ,name and score

10、"); scanf("%ld",&numi);scanf("%s",namei);scanf("%d",&scorei); /getchar();void Totalave (int score,int n) /2. 计算课程的总分和平均分 int i,sum=0;double ave;for(i=0;i<n;i+) sum=sum+scorei; ave=(double)sum/n;prin tf("总分=%d 课程的平均分=%fn",sum,ave);按学生void Scored

11、es (long num,int score,int n,char name10)/3.的分由高到低排知名次表int i,j,k,t,h;char temp10;for(i=0;i<n;i+)k=i;for(j=i+1;j<n;j+)if (scorej>scorek)k=j;if(i!=k)t=scorek,h=numk,strcpy(temp,namek); scorek=scorei,numk=numi,strcpy(namek,namei); scorei=t,numi=h,strcpy(namei,temp);for(i=0;i<n;i+)printf(&qu

12、ot;ID:%10ld,name:%s,score:%dn",numi,namei,scorei);/ 以 长 整 形打印用 %ldvoid Scoreas (long num,int score,int n,char name10)/4. 按学生的分由高到低排知名次表int i,k,t,h,j;char temp10;for(i=0;i<n;i+)k=i;for(j=i+1;j<n;j+)if (scorej<scorek)k=j;if(i!=k) t=scorek,h=numk,strcpy(temp,namek); scorek=scorei,numk=num

13、i,strcpy(namek,namei); scorei=t,numi=h,strcpy(namei,temp);for(i=0;i<n;i+)printf("ID:%10ld,name:%s,score:%dn",numi,namei,scorei);/ 以 长 整 形打印用 %ld按学号由小到大void Numas (long num,int score,int n,char name10) /5. 排知名次表int i,k,h,t,j;char temp10;for(i=0;i<n;i+)k=i;for(j=i+1;j<n;j+)if (numj&

14、lt;numk)k=j;if(i!=k)t=scorek,h=numk,strcpy(temp,namek); scorek=scorei,numk=numi,strcpy(namek,namei); scorei=t,numi=h,strcpy(namei,temp);for(i=0;i<n;i+)printf("ID:%10ld,name:%s,score:%dn",numi,namei,scorei);/ 形打印用 %ldvoid Nameorder(long num,int score,int n,char name10) /6 顺序排出成绩表int i,k,

15、t,h;char temp10;for(i=0;i<n;i+)for(k=i+1;k<n;k+)if(strcmp(namei,namek)>0)t=scorek,h=numk,strcpy(temp,namek); scorek=scorei,numk=numi,strcpy(namek,namei); scorei=t,numi=h,strcpy(namei,temp);for(i=0;i<n;i+)printf("ID:%10ld,name:%s,score:%dn",numi,namei,scorei);/ 形打印用 %ldvoid Sear

16、chbyno (long num,int score,int n,int x,char name10) /7. 号查询学生排名及测试成绩int high=n-1,low=0,mid,c=1,pos,find=0,i,k,h,j,t;char temp10;以长整.按姓名的字典以长整按学for(i=0;i<n;i+) k=i;for(j=i+1;j<n;j+)if (numj<numk)k=j;if(i!=k) t=scorek,h=numk,strcpy(temp,namek); scorek=scorei,numk=numi,strcpy(namek,namei); sco

17、rei=t,numi=h,strcpy(namei,temp);while(find=0&&low<=high)mid=(high+low)/2;if(x>nummid) low=mid+1;else if(x<nummid) high=mid-1;elsepos=mid;find=1;if(find=0)printf("not findn");elsefor(i=0;i<n;i+)if(scorei>scorepos)c+;printf("ID:%10ld,name:%s,order:%d,",numpos

18、,namepos,c);/ 以 长 整 形 打 印用ldprintf("score:%dn",scorepos);void Searchbyname(long num,int score,int n,char c,char name10)/8.按姓名查询学生排名及其测试成绩int i,pos=-1,d=1;for(i=0;i<n;i+) if(strcmp(namei,c)=0) pos=i; if(pos=-1) printf("not findn");elsefor(i=0;i<n;i+)if(scorei>scorepos)d+;printf("ID:%10ld,name:%s,order:%d,",numpos,namepos,d);/ 以 长 整 形 打 印 用ldprintf("score:%dn",scorepos);void statistis (int score,int n) /9.案优秀良好中等及格不及格 5 个类别,统计每个类别的人数以及所占的百分比int a=0,b=0,c=0,d=0,e=0,i;double A,B,C,D,E;for(i=0;i<n;i+)if(scorei>=90)a+;else if(scorei&g