8、多继承

/*
 * 多继承的构造函数和析构函数
 * 对于所有需要给予参数进行初始化的基类，都要显示给出基类名和参数表
 */

#include <iostream>
using namespace std;

class Base1
{
private:
   int b1;
public:
   Base1(){cout<<"Base1 缺省构造函数："<<b1<<endl;}
   Base1(int x):b1(x){cout<<"Base1 构造函数："<<b1<<endl;}
   ~Base1(){cout<<"Base1 析构函数："<<b1<<endl;}
};

class Base2
{
private:
   int b2;
public:
   Base2(){cout<<"Base2 缺省构造函数："<<b2<<endl;}
   Base2(int x):b2(x){cout<<"Base2 构造函数："<<b2<<endl;}
   ~Base2(){cout<<"Base2 析构函数："<<b2<<endl;}
};

class Derive:public Base1, public Base2
{
private:
   Base1 b1;
   Base2 b2;
public:
   Derive(){cout<<"Derive 缺省构造函数："<<endl;}
   Derive(int x, int y,int i, int j):b1(x),b2(y),Base1(i),Base2(j)
   {cout<<"Derive 构造函数："<<endl;}
   ~Derive(){cout<<"Derive 析构函数："<<endl;}
};

int main(void)
{
   Derive obj(1,2,3,4);
   return 0;
}