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zhang_sx

于 2015-04-24 17:45:17 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/zhang_sx/article/details/45249465

本文介绍了一个使用C++语言实现的学生信息管理系统，包括学号、姓名、成绩的存储和展示功能，以及总成绩、总人数和平均成绩的统计。

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#include <iostream>
#include <string>
using namespace std;
class student
{
private:
	float num;
	string name;
	float score;
	static int count;
	static float sum;
	float ave;
public:
	student(float num1,string name1,float score1);
	static void show(student &stu);
	static void show_all(student &Stu);
};
void student::show(student &stu0)
{
	cout<<"学号"<<stu0.num<<endl;
	cout<<"姓名"<<stu0.name<<endl;
	cout<<"成绩"<<stu0.score<<endl;
}
void student::show_all(student &Stu)
{
    cout<<"总成绩"<<sum<<endl;
	cout<<"总人数"<<count<<endl;
	cout<<"平均成绩"<<Stu.ave<<endl;
}
student::student(float num1,string name1,float score1)
{
	num=num1;name=name1;score=score1;
	sum=sum+score;
	count=count+1;
	ave=sum/count;
}
int student::count=0;
float student::sum=0.0;

int main()
{
	student stu[3]={
	        student(1,"zhang",96),
			student(2,"si",89),
			student(3,"xin",69)
	};
    student::show(stu[0]);
	student::show(stu[1]);
	student::show(stu[2]);
    stu[2].show_all(stu[2]);
	return 0;
}