C++ 学生成绩输入输出

#include <iostream> 
#include <string>
#include <vector>
using namespace std;


class student
{
	int count;
	string name;
	double score;
public:
	void print();
	string get_name();
	double get_score();
	int    get_count();
	void set_name(string n);
	void set_score(double s);
	void    set_count(int c);
	
};

void student::print()
{
	
	cout<<"\t"<<count<<"\t"<<name<<"\t"<<score<<endl;
}
void student::set_name(string n)
{
	name=n;
}
void student::set_score(double s)
{
	score=s;
}
void    student::set_count(int c)
{
	count=c;
} 
string student::get_name()
{
	return name;
}
double student::get_score()
{
	return score;
}
int    student::get_count()
{
	return count;
}


int main()
{
	student stu;
	int count;
	string name;
	double score;
	vector<student> stus;
	double average;
	cout<<"请输入要输入的数据条数:"<<endl; 
	cin>>count;
	cout<<"请输入学生姓名 分数 "<<endl;
	for(int i=0;i<count;i++) 
	{
		stu.set_count(i+1);
		cout<<stu.get_count()<<"     ";
		cin>>name>>score;
		stu.set_name(name);
		stu.set_score(score);
		stus.push_back(stu);
		average+=stu.get_score();
	}
	average=average/count;
	cout<<"\t"<<"序号"<<"\t"<<"姓名"<<"\t"<<"分数"<<endl;
	for(int i=0;i<stus.size();i++)
	{
		stus[i].print();
	}
	cout<<"平均分 ："<<average<<endl;
	
		
	return 0;
}