fruit.cpp

#include<iostream>
#include"fruit.h"
using namespace std;
c1::c1(void)
{
	cout << "c1::init void" << endl;
	this->i = 998;
}

c1::c1(int i)
{
	cout << "c1::init i=" << i << endl;
	this->i = i;
}

c1::~c1(void)
{
	cout << "c1::end" << endl;
}

void c1::print(void)
{
	cout << "c1::print " << this->i << endl;
}

void c1::set(void)
{
	int i;
	cin >> i;
	this->i = i;
}
c2::c2(void)
{
	cout<<"c2::init void"<<endl;
	
}
c2::c2(int i, int m2):c1(12)	//c2构造函数,调用c1(12)继承c1
{
	cout << "c2::init value" << endl;
	this->m2 = m2;
}

void c2::print(void)
{
	cout << "c2::print " << this->i << " " << this->m2 << endl;
}

c2::~c2(void)
{
	cout << "c2::end" << endl;
}
void c3::print(void)
{
	cout<<"c3::print"<<endl;
}
c3::c3(void)
{

}
c3::~c3(void)
{}