?? proj10_02.cpp
字號(hào):
#include <iostream.h>
class A
{
public:
A(){a = 1;} // 以class A 建立的對(duì)象初值都設(shè)a=1
int a;
};
class B : public A
{
public:
B(){b = 2;} // 以class B 建立的對(duì)象初值都設(shè)b=2
int b;
};
void main()
{
A objA;
B objB;
cout << "sizeof(objA) = " << sizeof(objA) << "\n";
cout << "sizeof(objB) = " << sizeof(objB) << "\n";
/* 觀察objA與objB對(duì)象,成員地址 */
cout << &objA << " " << &objA.a << "\n";
cout << &objB << " " << &objB.a << " " << &objB.b << "\n";
cout << objA.a << "\n";
cout << objB.a << " " << objB.b << "\n";
}
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