结构体变量的简单计算

#include<iostream>
using namespace std;
int main()
{
    struct{
        char initial;
        int age;
        int grade;
    }boy,girl;
    boy.initial='R';
    boy.age=17;
    boy.grade=75;
    girl.initial='H';
    girl.age=boy.age-1;
    girl.grade=82;
    cout<<boy.initial<<" is "<<boy.age<<" years old and got a grade of "<<boy.grade<<endl;
    cout<<girl.initial<<" is "<<girl.age<<" years old and got a grade of "<<girl.grade<<endl;
}