C++ 模板函数与类的结合 (定义一个Student类，有姓名和三门课的成绩，通过比较学生对象的三门课成绩的总分，实现求总分最高的学生对象)

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

class Student {
public:
    Student();
    Student(const string& name,int score1,int score2,int score3);
    friend ostream& operator<<(ostream& myout,const Student& s);
    bool operator > (const Student& s1);
private:
    string name;
    int score1, score2, score3;
};
template<class A>
A getmax(A a,A b) {
    return a > b ? a : b;
}
//主函数
int main() {
    Student s1("小王", 60, 70, 80), s2("小徐", 89, 90, 95);
    cout << getmax(s1, s2) << endl;

    system("pause");
    return 0;
}

Student::Student()
{
    name = " ";
    score1 = 0;
    score2 = 0;
    score3 = 0;
}

Student::Student(const string& name, int score1, int score2, int score3)
{
    this->name = name;
    this->score1 = score1;
    this->score2 = score2;
    this->score3 = score3;
}

bool Student::operator>(const Student& s1)
{
    if ((this->score1 + this->score2 + this->score3) > (s1.score1 + s1.score2 + s1.score3)) {
        return true;
    } return false;
}

ostream& operator<<(ostream& myout, const Student& s)
{
    myout << "姓名：" << s.name << "\t成绩1：" << s.score1 
        << "\t成绩2：" << s.score2 << "\t成绩3：" << s.score3 << endl;
    return myout;
}