题目内容:
有如下程序: #include
classBASE{
charc;
public:
BASE(charn):c(n){}
virtual~BASE(){cout<
};
classDERIVED:publicBASE{
charc;
public:
DERIVED(charn):BASE(n+1),c(n){}
~DERIVED(){cout<
};
intmain()
{DERIVED("X");
return0;
}
执行上面的程序将输出( ) A.XY
B.YX
C.X
D.Y
参考答案:
答案解析: