3-0-10答.txt

思路很清晰的c++课件。例子很简明

#include <iostream.h>
class Rectangl{
private:
	int Width;
	int Height;
public:
	Rectangl(int w,int h=0)
	{
		Width=w;
		Height=h>0?h:w;
	}
	void DispArea()
	{
		cout<<Width*Height<<endl;
	}
};
void main()
{
	Rectangl a(10,5),b(10);
	a.DispArea();
	b.DispArea();
}