103.带参构造类的继承原理

#include <iostream>
using namespace std;

//构造的时候,从父类到子类构造
//子类构造先调用父类构造
class myclass
{
public:
    int x;
    int y;

public:
    myclass(int a,int b):x(a),y(b)
    {
        cout << "myclass" << endl;
    }
    ~myclass()
    {

    }
};

class newmyclass :public myclass
{
public:
    int z;
public:
    newmyclass(int a, int b,int c) :myclass(a, b),z(c)
    {
        cout << "newmyclass" << endl;
    }

};

class newnewclass :public newmyclass
{
public:
    int l;
public:
    newnewclass(int a, int b, int c, int d) :newmyclass(a,b,c), l(d)
    {
        cout << "newnewclass" << endl;
    }
};

void main()
{
    newnewclass my(1,2,3,4);
    cin.get();
}