override.cc

来自「做为SD0609的一员,我扎实的基础是如何打出来的,来看看我那时连猴子选大王都不」· CC 代码 · 共 34 行

#include <iostream>
using namespace std;

class base{
	int bData;
public:
	base():bData(10){}
	void setData( int d ){bData=d;}
	int getData(){return bData;}
	void showAddress(){cout<<&bData<<endl;}
};
class derived : public base{
	int dData;
public:
	derived():dData(30){}
	void setData( int d ){dData=d;}
	int getData(){return dData;}
	void showAddress(){cout<<&dData<<endl;}
};
int main(int argc, char* argv[])
{
	cout<<"sizeof base:"<<sizeof(base)<<endl;
	cout<<"sizeof derived:"<<sizeof(derived)<<endl;
	derived od;
	od.base::setData( 123 );
	od.setData( 456 );
	cout << od.base::getData() << endl;
	cout << od.getData() << endl;
	od.base::showAddress();
	od.showAddress();
	return 0;
}