Question

利用虚函数实现的多态性来求四种几何图形的面积.这四种集合图形是：三角形、矩形.正方形和圆.

Answer 1

class Cric{

public:

Cric(){};

Cric(int x,int y,int c){

cx=x;cy=y;bj=c;

};

Cric(){};

private:

int cx,cy;

int bj;

public:

void ShowM(){

cout<};

};

class CricEx:public Cric{

public:

CricEx(){};

CricEx(){};

private:

int height;

public:

void ShowV(){

cout<};

};

.

请参考