c++共有继承

#include

using namespace std;

class Point{
public:
	void initPoint(float x = 0,float y = 0){this->x = x;this->y = y;
	}
	void move(float offX, float offY) {x += offX;y += offY;}
	float getX() const{return x;}
	float getY() const{return y;}
private:
	float x,y;
};

class Rectangle:public Point{//派生类定义 公有继承
public:
void initRectangle(float x,float y,float w,float h){
initPoint(x,y);//调用父类共有成员函数
this -> w = w;
this -> h = h; 
}
float getW() const{return w;}
float getH() const{return h;}
private:
	float w,h;
};

int main (){
Rectangle rect;
rect.initRectangle(2,3,20,10);//设置矩形数据，前两个表示矩形位置，后两个表示矩形的宽和长
rect.move(3,2);
cout<< "the data of rect(x,y,w,h)："<< endl;
cout<