c语言大作业——学生成绩管理系统v50

1、实用文档/成绩管理系统v1.0#i nclude #i nclude #in elude #defi ne N 30#defi ne M 6typedef struct stude ntlong stude ntID;char stude ntName10;int scoreM;STU;void In put (STU stu,i nt n,i nt m);void Totalave (STU stu,int n,int m);void evestuTotalave (STU stu,i nt n ,i nt m);void Scoredes (STU stu,i nt n,i nt m);v

2、oid Scoreas (STU stu,i nt n ,i nt m);void Numas (STU stu,int n,int m);void Dicas (STU stu,int n,int m);void Searchb ynum (STU stu,i nt n ,i nt x,i nt m);void Searchbyma ne(STU stu,i nt n, char n ame,i nt m);void statistis (STU stu,int n,int m);void List (STU stu,int n,int m);int mai n()int n,c,x,m;c

3、har n ame10;STU stuN;printf(输入学生人数);scan f(%d,&n);printf(”输入考试科目);scan f(%d,&m);prin tf(1. In put recordn);prin tf(2.Caculate totel and average score of every coursen);prin tf(3.Caculate totel and average score of every stude ntn ”)；prin tf(4.Sort in desce nding order by total score of every stude n

4、tn);prin tf(5.Sort in asce nding order by total score of every stude ntn ”)；prin tf(6.Sort in asce nding order by nu mber n);prin tf(7.Sort in asce nding order by n ame);prin tf(8.Search by nu mber n);prin tf(9.Search by n amen);prin tf(10.Statistic an alysis for every coursen);printf(11.List record

5、n);prin tf(0.Exitn ”);prin tf(Please en ter your choice: n);prin tf(n);for(;)scan f(%d, &c);switch(c)case 1:/录入学生学号和各科成绩In put (stu, n, m);prin tf(Please en ter your choice:n);break;case 2:/计算每门课程的总分和平均分Totalave (stu, n, m);prin tf(Please en ter your choice:n);break;case 3:/计算每个学生的总分和平均分evestuT otal

6、ave (stu,n,m);break;case 4:/按每个学生的总分由高到低排出名次表Scoredes (stu, n, m);prin tf(Please en ter 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);prin tf(Please en ter your choice: n);break;case 6:/按学号由小到大排出名次表Numas (stu, n, m);prin tf(Please en ter your choice: n);break;case 7:/按姓名的字典顺序排出成绩

7、表Dicas(stu, n,m);prin tf(Please en ter 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”);scan f(%d，& x);Searchb ynu m(stu ,n, x,m);prin tf(Please en ter 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”);sca nf(%s, name);getchar();Searchbyma ne(stu ,n,n ame,m);prin tf(Please

8、 en ter your choice: n);break;所占百分比case 10:/成绩分析statistis (stu, n, m);prin tf(Please en ter your choice: n);break;case 11:/全部输出List (stu, n, m);Totalave (stu, n, m);prin tf(Please en ter your choice: n);break;case 0:exit(0);return 0;void In put (STU stu,i nt n,i nt m)1int i,j;for(i=0;i n ;i+)文案大全pri

9、n tf(l nput stude nts ID ,n ame and score);scan f(%ld, &stui.stude ntID);scan f(%s,stui.stude ntName);for(j=0;jm;j+)scan f(%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;jm;j+)sum j=0;for(i=0;i n; i+)sum j=sum j+stui.scorej;ave j=(double)sumj/n;

10、for(i=0;im;i+)printf(科目 %d 的总分=%d,课程的平均分=%fn,i+1,sumi,avei);void evestuTotalave (STU stu,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;jm;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.stude ntlD,stui.stude

11、 ntName,sumi,avei);void Scoredes (STU stu,int n,int m)/4.按每个学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;jm;j+)sumi=sumi+stui.scorej;for(i=0;i n;i+)k=i;for( j=i+1;jsumk)k=j;if(i!=k)t=stui,h=sumi;stui=stuk,sumi=sumk;stuk=t,sumk=h;for(i=0;i n;i+)prin tf(ID:%10ld ,n ame:%s,score:

12、%dn,stui.stude ntlD,stui.stude ntName,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 至0 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;jm;j+)sumi=sumi+stui.scorej;for(i=0;i n;i+)k=i;for( j=i+1;jn;j+)if (sum jsumk)k=j;if(i!=k)t=stui,h=sumi;stui=stuk,sumi=sumk;stuk=t

13、,sumk=h;for(i=0;i n;i+)prin tf(ID:%10ld, name:%s,score:%dn,stui.stude ntlD,stui.stude ntName,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;jn;j+)if (stuj.stude ntlDstuk.stude ntID)k=j;if(i!=k)t=stuk,stuk=stui,stui=t;for(i=0;i n;i+)以长整pr

14、in tf(ID:%10ld, name:%sn,stui.stude ntlD,stui.stude ntName);/形打印用%ldfor( j=O;jm;j+)prin tf(project %d score:%dn,j+1,stui.scorej);void Dicas (STU stu,i nt n,i nt m)/7.int i,j;STU t;for(i=0;i n;i+)for(j=i+1;j0)t=stui,stui=stuj,stuj=t;for(i=0;i n;i+)prin tf(ID:%10ld, name:%sn,stui.stude ntlD,stui.stude

15、 ntName);for(j=0;jm;j+)prin tf(project:%d,score:%dn,j+1,stui.scorej);void Searchbynum (STU stu,int n,int x,int m)8.按学号查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=O;for( j=O;jm;j+)sumi=sumi+stui.scorej;for(i=0;i n;i+)if(stui.stude ntlD=x)fin d=1;break;if(fin d=0)printf(not findn);elsefor(

16、j=0;jsumi)c+;以长整形打印prin tf(ID:%10ld name:%sn,stui.stude ntlD,stui.stude ntName);/用ldfor( j=O;jm;j+)printf(project %d score:%dn,j+1,stui.scorej);prin tf(all score: %d,order:%dn ,sumi,c);9void Searchbyma ne(STU stu,i nt n, char n ame,i nt m)int i,j,c=1,find=0,sumN;for(i=0;i n;i+)sumi=0;for( j=0;jm;j+)

17、sumi=sumi+stui.scorej;for(i=0;i n;i+)if(strcmp(stui.stude ntName ,n ame)=0)fin d=1;break;if(fin d=0)printf(not findn);elsefor(j=0;jsumi)C+；以长整形打印prin tf(ID:%10ld, name:%sn,stui.stude ntlD,stui.stude ntName);/ 用%ldfor( j=O;jm;j+)printf(project %d score:%dn,j+1,stui.scorej);prin tf(all score: %d,order

18、:%dn ,sumi,c);void statistis (STU stu,i nt n,i nt m)/10.int a=0,b=0,c=0,d=0,e=0,i,j;double A,B,C,D,E;for(j=0;jm;j+)for(i=0;i =)tu_d 吞 q=s%4%- Mow-p% 豪W菽=u_d=5-2% %4罠 Mow-P% 敝s=)tu_dXL+r=sp% 1。里0壬_| ooru05o_qnopll山 oOL*wpo_qnopllcl ooru/oo_qnopll。 oorwqo_qnopll8 oOL*u76o_qnopll so 匸+p o9HAs28s=aSM so+0onAs28s.=aSM so 匸+qo8HAs28s=aSM so匸+E o6UAL=28s.=as=_報仪旺u实用文档printf(” 不及格人数 d,百分比:%f%n,e,E);void List (S