由於C++中默認是private,所以a,b,c都是私有成員。(指針可是萬能之王,然而也是萬惡之源。)
using namespace std;
class X{
int a;
int b;
union{
int c;
cahr d[4];
int e;
};
public:
int getb(){return b;}
int getc(){return c;}
int gete(){return e;}
};
int main()
{
X x;
__________(補充代碼,實現輸入兩個10)
cout<<x.getb()<<endl;
cout<<x.gete()<<endl;
return 0;
}
答案:
int *pb = (int *)&x + 1;
*pb = 10;
int *pe = (int *)&x + 2;
*pe = 10;