给你个重载<<的例子,另一个就顺藤摸瓜吧,哈哈~
// class1.h
#include<iostream>
class class1
{
private:
int age;
int number;
public :
class1();
friend std::ostream& operator<<(std::ostream&,class1);
int getAge();
};
#include"class1.h"
class1::class1():age(21),number(10)
{
}
int class1::getAge()
{
return age;
}