能不能用键盘输入这些数组?

#include "iostream.h"
int main()
{
const int STU_NUM=5;
const int COU_NUM=4;
int i,j;
float score[STU_NUM+1] [COU_NUM+1]={{78,85,83,65},{88,91,89,93},{72,65,54,75},{86,88,75,60},{69,60,50,72}};
for (i=0;i<STU_NUM;i++)
{
for(j=0;j<COU_NUM;j++)
{ score[i][COU_NUM]+=score[i][j];
score[STU_NUM][j]+=score[i][j];
}
score[i][COU_NUM]/=COU_NUM;

}
for(j=0;j<COU_NUM;j++)
score[STU_NUM][j]/=STU_NUM;
cout<<"学生编号\t课程1\t课程2\t课程3\t课程4\t个人平均\n";
for(i=0;i<STU_NUM;i++)
{
cout<<"学生"<<i+1<<"\t\t";
for(j=0;j<COU_NUM+1;j++)
cout<<score[i][j]<<'\t';
cout<<endl;
}
for(j=0;j<8*(COU_NUM+2);j++)
cout<<"-";
cout<<"\n课程平均成绩";
for(j=0;j<COU_NUM;j++)
cout<<"\t"<<score[STU_NUM][j];
cout<<endl;
return 0;
}

就是这句： float score[STU_NUM+1] [COU_NUM+1]={{78,85,83,65},{88,91,89,93},{72,65,54,75},{86,88,75,60},{69,60,50,72}};
可以用键盘输入这些数字吗？

完全可以

#include "iostream.h"

int main()
{
const int STU_NUM=5;
const int COU_NUM=4;
int i,j;
float score[STU_NUM+1] [COU_NUM+1];
cout<<"请输入数据：";
for( i = 0; i < STU_NUM; i++ )
{
for( j = 0; j < COU_NUM; j++ )
{
cout<<i+1<<"行"<<j+1<<"列:";
cin>>score[i][j];
cout<<endl;
}
}
for (i=0;i<STU_NUM;i++)
{
for(j=0;j<COU_NUM;j++)
{ score[i][COU_NUM]+=score[i][j];
score[STU_NUM][j]+=score[i][j];
}
score[i][COU_NUM]/=COU_NUM;

}
for(j=0;j<COU_NUM;j++)
score[STU_NUM][j]/=STU_NUM;
cout<<"学生编号\t课程1\t课程2\t课程3\t课程4\t个人平均\n";
for(i=0;i<STU_NUM;i++)
{
cout<<"学生"<<i+1<<"\t\t";
for(j=0;j<COU_NUM+1;j++)
cout<<score[i][j]<<'\t';
cout<<endl;
}
for(j=0;j<8*(COU_NUM+2);j++)
cout<<"-";
cout<<"\n课程平均成绩";
for(j=0;j<COU_NUM;j++)
cout<<"\t"<<score[STU_NUM][j];
cout<<endl;
return 0;
}

可以

#include "iostream.h" int main() { const int STU_NUM=5; const int COU_NUM=4; int i,j;

float score[STU_NUM][COU_NUM]; for(i=0;i<STU_NUM;i++)

{

for(j=0;j<COU_NUM;j++)

cin >>score[i][j];

} for (i=0;i<STU_NUM;i++) { for(j=0;j<COU_NUM;j++) { score[i][COU_NUM]+=score[i][j]; score[STU_NUM][j]+=score[i][j]; } score[i][COU_NUM]/=COU_NUM; } for(j=0;j<COU_NUM;j++) score[STU_NUM][j]/=STU_NUM; cout<<"学生编号\t课程1\t课程2\t课程3\t课程4\t个人平均\n"; for(i=0;i<STU_NUM;i++) { cout<<"学生"<<i+1<<"\t\t"; for(j=0;j<COU_NUM+1;j++) cout<<score[i][j]<<'\t'; cout<<endl; } for(j=0;j<8*(COU_NUM+2);j++) cout<<"-"; cout<<"\n课程平均成绩"; for(j=0;j<COU_NUM;j++) cout<<"\t"<<score[STU_NUM][j]; cout<<endl; return 0; }

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