IBM R&D C++面试题

1. int p=1;

int q=-1;

int i=-p++-q;

printf(“%d n”,i);

2. 似乎是这样的：

class CA

{

public:

int i;

virtual ff(){i = 1};

void print(){printf(“%dn”),i};

}

class CB:public class CA

{

private:

int i;

public:

virtual ff(){i = 2};

//void print(){printf(“%dn”),i};

}

class CC:public class CB

{

private:

int i;

public:

virtual ff(){i = 3};

//void print(){printf(“%dn”),i};

}

int main()

{

CC * A = new CB();

A->ff();

A->print();

CC * B = (CC *)new CA();

B->ff();

B->print();

CC * C= (CC *)new CB();

C->ff();

C->print();

}

3. C++ 比c好的地方。（多选）

4. inline 函数的特点 (多选)

5. inline ＆ 宏的不同 （多选）

6. 什么叫做抽象