书籍源码

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Visual C++

Ex8_3.cpp：源码内容

							//【例8.3】在采用虚基类的多重继承中，构造与析构的次序。
#include<iostream>
using namespace std;
class Object{
public:
	Object(){cout<<"constructor Objectn";}
	~Object(){cout<<"deconstructor Objectn";}
};
class Bclass1{
public:
	Bclass1(){cout<<"constructor Bclass1n";}
	~Bclass1(){cout<<"deconstructor Bclass1n";}
};
class Bclass2{
public:
	Bclass2(){cout<<"constructor Bclass2n";}
	~Bclass2(){cout<<"deconstructor Bclass2n";}
};
class Bclass3{
public:
	Bclass3(){cout<<"constructor Bclass3n";}
	~Bclass3(){cout<<"deconstructor Bclass3n";}
};
class Dclass:public Bclass1,virtual Bclass3,virtual Bclass2{
	Object object;
public:
	Dclass():object(),Bclass2(),Bclass3(),Bclass1(){cout<<"派生类建立!n";}
	~Dclass(){cout<<"派生类析构!n";}
};
int main(){
	Dclass dd;
	cout<<"主程序运行!n";
	return 0;
}

						