a_8_3.cpp

来自「C++应用教程原码,里面包含该书中有十三章内容的代码,详细具体」· C++ 代码 · 共 34 行

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;

class Student {
   public: 
        Student(string i,int j)
	     : name(i), age(j)
	    {  }
		friend int operator -(const Student &,const Student &);
		string getName()
		{ return name;}
		int getAge()
		{ return age;}
   private:
      int age;
	    string name;
};
int operator - (const Student &a,const Student &b)
{  return (a.age-b.age);}
void main()
{  Student a("Huangshan",22),b("Liuyu",25);
   cout << a.getName()<<","<< a.getAge()<<endl;
   cout << b.getName()<<","<< b.getAge()<<endl;
   if ((a-b)>0)
	   cout << a.getName() << "比" << b.getName() << "大"<< a-b<<"岁";
   else
	   cout << a.getName() << "比" << b.getName() << "小"<< b-a<<"岁";
   cin.get(); //等待结束，以便调测程序，可以删除
}