11_2.cpp

vc++的实验和实训例子非常适合初学者学习和阅读

#include<iostream.h>
#include<iomanip.h>
#define Max 20
class English
{
	int ptr;
	int score[Max];
public:
	void getdata(int val,int ptr){score[ptr]=val;}
	int disp(int ptr){return score[ptr];}
};
class Computer
{
	int ptr;
	int score[Max];
public:
	void getdata(int val,int ptr){score[ptr]=val;}
	int disp(int ptr){return score[ptr];}
};
class Chinese
{
	int ptr;
	int score[Max];
public:
	void getdata(int val,int ptr){score[ptr]=val;}
	int disp(int ptr){return score[ptr];}
};
class Student:private English,private Computer,private Chinese
{
	char name[Max][10];
	int average[Max];
public:
	void getdata(int index)
	{
		int score1,score2,score3;
		for(int i=0;i<index;i++)
		{
			average[i]=0;
			cout<<"学生姓名：";
			cin>>name[i];
			cout<<"英语	计算机 语文成绩:";
			cin>>score1>>score2>>score3;
			average[i]+=score1;
			average[i]+=score2;
			average[i]+=score3;
			English::getdata(score1,i);
			Computer::getdata(score2,i);
			Chinese::getdata(score3,i);
			average[i]/=3;
		}
	}
	void disp(int index)
	{
		cout<<"输出结果为：";
		cout<<"姓名	英语 计算机 中文 平均分"<<endl;
		for(int i=0;i<index;i++)
		{
			cout<<setw(10)<<name[i]<<" ";
			cout<<setw(6)<<English::disp(i)<<" ";
			cout<<setw(6)<<Computer::disp(i)<<" ";
			cout<<setw(6)<<Chinese::disp(i)<<" ";
			cout<<setw(6)<<average[i]<<endl;
		}
		cout<<endl;
	}
};
void main()
{
	Student s;
	int num;
	cout<<"学生人数：";
	cin>>num;
	s.getdata(num);
	s.disp(num);
}