学生成绩管理系统v40Word文档下载推荐.docx
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longnum[N];
printf("
输入学生人数"
);
scanf("
%d"
&
n);
输入考试科目"
m);
1.Inputrecord\n"
2.Caculatetotelandaveragescoreofeverycourse\n"
3.Caculatetotelandaveragescoreofeverystudent\n"
4.Sortindescendingorderbytotalscoreofeverystudent\n"
5.Sortinascendingorderbytotalscoreofeverystudent\n"
6.Sortinascendingorderbynumber\n"
7.Searchbynumber\n"
8.Statisticanalysisforeverycourse\n"
9.Listrecord\n"
0.Exit\n"
Pleaseenteryourchoice:
\n"
for(;
;
)
{
c);
switch(c)
case1:
//录入学生学号和各科成绩
Input(num,score,n,m);
break;
case2:
//计算每门课程的总分和平均分
Totalave(score,n,m);
case3:
//计算每个学生的总分和平均分
evestuTotalave(score,n,m,num);
case4:
//按每个学生的总分由高到低排出名次表
Scoredes(num,score,n,m);
case5:
//按每个学生的总分由低到高排出名次表
Scoreas(num,score,n,m);
case6:
//按学号由小到大排出名次表
Numas(num,score,n,m);
case7:
//按学号查询学生排名及其各科成绩
请输入查找学号\n"
x);
Search(num,score,n,x,m);
case8:
//成绩分析所占百分比
statistis(num,score,n,m);
case9:
//全部输出
List(num,score,n,m);
case0:
exit(0);
}
return0;
}
voidInput(longnum[],intscore[][M],intn,intm)//1
inti,j;
for(i=0;
i<
n;
i++)
Inputstudent'
sIDandscore"
%ld"
num[i]);
for(j=0;
j<
m;
j++)
score[i][j]);
voidTotalave(intscore[][M],intn,intm)//2.计算每门课程的总分和平均分
inti,j,sum[M];
doubleave[M];
sum[j]=0;
sum[j]=sum[j]+score[i][j];
ave[j]=(double)sum[j]/n;
科目%d的总分=%d,课程的平均分=%f\n"
i+1,sum[i],ave[i]);
voidevestuTotalave(intscore[][M],intn,intm,longnum[])//3.计算每个学生的总分和平均分
inti,j,sum[N];
doubleave[N];
sum[i]=0;
sum[i]=sum[i]+score[i][j];
ave[i]=(double)sum[i]/m;
学号为%ld的总分=%d,其平均分=%f\n"
num[i],sum[i],ave[i]);
voidScoredes(longnum[],intscore[][M],intn,intm)//4.按每个学生的总分由高到低排出名次表
inti,j,k,t,h,sum[N];
k=i;
for(j=i+1;
if(sum[j]>
sum[k])
k=j;
if(i!
=k)
t=sum[k],h=num[k];
sum[k]=sum[i],num[k]=num[i];
sum[i]=t,num[i]=h;
ID:
%10ld,score:
%d\n"
num[i],sum[i]);
//以长整形打印用%ld
voidScoreas(longnum[],intscore[][M],intn,intm)//5.按每个学生的总分由di到gao排出名次表
if(sum[j]<
voidNumas(longnum[],intscore[][M],intn,intm)//6.按学号由小到大排出名次表
inti,j,k,t[M],h,l;
if(num[j]<
num[k])
h=num[k];
num[k]=num[i];
num[i]=h;
for(l=0;
l<
l++)
t[l]=score[k][l];
score[k][l]=score[i][l];
score[i][l]=t[l];
%10ld\n"
num[i]);
project%dscore:
j+1,score[i][j]);
voidSearch(longnum[],intscore[][M],intn,intx,intm)//7.按学号查询学生排名及其各科成绩
inthigh=n-1,low=0,mid,c=1,pos,o,find=0,i,j,k,t[M],h,sum[N],l;
h=num[k],o=sum[k];
num[k]=num[i],sum[k]=sum[i];
num[i]=h,sum[i]=o;
while(find==0&
&
low<
=high)
mid=(high+low)/2;
if(x>
num[mid])
low=mid+1;
elseif(x<
high=mid-1;
else
pos=mid;
find=1;
if(find==0)
notfind\n"
if(sum[i]>
sum[pos])
c++;
num[pos]);
j+1,score[pos][j]);
allscore:
%d,order:
sum[pos],c);
voidstatistis(longnum[],intscore[][M],intn,intm)//8.
inta=0,b=0,c=0,d=0,e=0,i,j;
doubleA,B,C,D,E;
if(score[i][j]>
=90)
a++;
elseif(score[i][j]>
=80)
b++;
=70)
=60)
d++;
e++;
A=(double)a/n*100;
B=(double)b/n*100;
C=(double)c/n*100;
D=(double)d/n*100;
E=(double)e/n*100;
project%d\n"
j+1);
优秀人数%d,百分比:
%f%%\n"
a,A);
良好人数%d,百分比:
b,B);
中等人数%d,百分比:
c,C);
及格人数%d,百分比:
d,D);
不及格人数%d,百分比:
e,E);
voidList(longnum[],intscore[][M],intn,intm)
score:
score[i][j]);
总分=%d\n平均分%f\n"
sum[i],ave[i]);