c++ 私有继承

#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:private Point{//Point 的move函数继承到矩形变成私有函数 
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; 
	}
void move(float offx,float offy){
	Point::move(offx,offy);//通过父类类名加作用域分辨符调用点类的move函数 
}
float getx() const{ return Point::getx();}
float gety() const{ return Point::gety();}
float geth() const{ return h;}
float getw() const{ return w;}
private:
	float w,h;
};

int main (){
Rectangle rect;//定义Rectangle类的对象
rect.initRectangle(2,3,20,10);
rect.move(3,2);
cout<<"the data of rect(x,y,w,h)"<