C++ 操作符重载 operator = 、operator <

#pragma  once

class person
{
public:
person(int _age=0):age(_age)
{

}

person& operator = (const person& a)
{
age=a.age;
return *this;
}

bool operator < (const person& a)
{
if(age<a.age)
{
return true;
}
return false;
}

private:
int age;
};

#include "person.cpp"

int main()
{
person a(1);
person b;
b=a;

person c(2);
if(a<c)
{
int qq=0;
}
return 0;
}