5.1.cpp

关于友元的实验程序源代码

#include <iostream.h>
class Score 
{
private:  
      float n,m[100];
      float a[100],score;
      static float totals ;
     
public: 
        Score(); 
	~Score();  
	void re_totals();  
       
};


Score::Score()
{  }
Score::~Score()
{  }
float Score::totals=0;
void Score::re_totals()
{       float score=0;
	cout<<"输入学生人数:";
        cin>>n;cout<<endl;
	for(int i=1;i<=n;i++)
	{cout<<"输入学生学号:";cin>>m[i];
	 cout<<"输入学生成绩:";
	 cin>>a[i];cout<<endl;
	 score=score+a[i]; 
	}
	cout<<"学生学号"<<" "<<"学生成绩"<<endl;
	for(i=1;i<=n;i++)
	{
	 cout<<"   "<<m[i]<<"       "<<a[i]<<endl; }
         totals=score;  
	 cout<<"学生总分为:"<<totals<<endl;    
}


void main()
{ Score myScore;  
  myScore.re_totals();
}