自考新教材-p268

虚基类

源程序:

#include <iostream>

using namespace std;

class A{

public:

int a;

void showa(){

cout<<"a="<<a<<endl;

}

};

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class B:virtual public A{

public:

int b;

};

class C:virtual public A{

public:

int c;

};

class D:public B,public C{

public:

int d;

};

int main(){

D Dobj;

Dobj.a = 11;

Dobj.b = 22;

Dobj.showa();

cout<<"Dobj.b="<<Dobj.b<<endl;

return 0;

}

运行结果:

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转载自www.cnblogs.com/duanqibo/p/12183398.html