circle.cpp

本文是类与对象实验所有内容

#include <iostream.h>
#include "circle.h"
const float pi=3.1415926;
void circle::sd(double r)
{
	s = r*r*pi;
	d = 2*r*pi;
}
void sd1(double r)
{
	float s,d;
	s = r*r*pi;
	d = 2*r*pi;
	cout <<"圆的周长是:"<<d<<"\n";
	cout <<"圆的面积是:"<<s<<"\n";
	cout<<"*************************\n"<<endl;
}