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一个C++程序

时间:2018-04-15 22:53:31      阅读:153      评论:0      收藏:0      [点我收藏+]

标签:日常

#include<iostream>
using namespace std;
class Student
{public:
Student(int n,int a,float s):num(n),age(a),score(s){}
void total();
static float average();
private:
int num;
int age;
float score;
static float sum;
static int count;
};

void Student::total()
{sum += score;
count ++;
}

float Student::average()
{return(sum/count);
}

float Student::sum = 0;
int Student::count = 0;

int main()
{Student stud[3] = {
Student(1001,18,70),
Student(1002,19,78),
Student(1005,20,98)};
int n;
cout<<"please input the number of students:";
cin>>n;
for(int i = 0;i < n;i ++)
{stud[i].total();
}
cout<<"the average score of"<<n<<"student is"<<Student::average()<<endl;
return 0;
}
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一个C++程序

标签:日常

原文地址:http://blog.51cto.com/13615683/2103733

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