Question

按照对四边形的解析几何学描述,用C++写出四边形的类声明体

Answer 1

class rectangle

{

public:

rectangle() : m_width(0),m_height(0){}//默认构造函数

rectangle(int width, int height)

: m_width(width),m_height(height){} //构造函数带宽高

int getWidth() const {return m_width;} //取得宽度

int getHeight() const {return m_height;} //取得高度

int getArea() const {return m_width*m_height;} //取得面积

protected:

int m_width;

int m_height;

}