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最新推荐文章于 2025-04-21 22:34:18 发布

原创最新推荐文章于 2025-04-21 22:34:18 发布 · 323 阅读

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CC 4.0 BY-SA版权

本文介绍了一个学生信息管理系统，通过定义一个名为Student的类来管理学生姓名、学号、成绩，并提供了展示和统计学生信息的方法。

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#include<iostream>
#include<string>
using namespace std;
class Student
{
public:
	Student(string name1,int number1,float score1);
    void show();
	void show_count_sum_ave();
private:
	string name;
	int number;
	float score;
	static int count;
	static float sum;
	static float ave;
};
Student::Student(string n,int num,float s)
{
	name=n;
	number=num;
	score=s;
	count++;
	sum+=score;
	ave=sum/count;
}
void Student::show()
{
	cout<<"name:"<<name<<endl;
	cout<<"number:"<<number<<" ";
	cout<<"score:"<<score<<endl;}
void Student::show_count_sum_ave()
{
cout<<"count:"<<count<<" ";
cout<<"sum:"<<sum<<" ";
cout<<"ave:"<<ave<<" ";
cout<<endl<<endl;
}
int Student::count=0;
float Student::sum=0.0;
float Student::ave=0.0;
int main()
{Student stu1("a",1,100);
stu1.show();
stu1.show_count_sum_ave();
Student stu2("b",2,99);
stu2.show();
stu2.show_count_sum_ave();
Student stu3("c",3,98);
stu3.show();
stu3.show_count_sum_ave();
return 0;
}