题目描述
JC和Kitty听说小亮和小华有了Rectangle和Circle并用RsubC类比较了大小,于是想借小亮和小华的Rectangle和Circle来仿制自己的形状,于是JC和Kitty完成了自己的rectangle类和circle类,他们两个也要比较一下形状大小。但是JC和Kitty没有为RsubC1类(其中的布尔类型sign等于0时,新面积等于Rectangle+Circle,sign等于1时,新面积等于Rectangle-Circle)写构造函数与area面积函数,请帮助JC和Kitty完成RsubC1类。
//小强写的文件头和各种类
#include<iostream>
using namespace std;
#define pi 3.14
class Shape
{
public:
Shape();
Shape(int c);
int getcolor();
double area();
protected:
int color;
};
Shape::Shape()
{
color=0;
}
Shape::Shape(int c):color(c){}
int Shape::getcolor()
{
return color;
}
double Shape::area()
{
return 1000;
}
class Rectangle:public Shape
{
public:
Rectangle();
Rectangle(int c, double w,double h);
double getwidth();
double getheight();
double area();
double price();
protected:
double width,height;
};
Rectangle::Rectangle()
{
width=10;height=5;
}
Rectangle::Rectangle(int c, double w,double h):Shape(c)
{
width=w;
height=h;
}
double Rectangle::getwidth()
{
return width;
}
double Rectangle::area()
{
return width*height;
}
double Rectangle::getheight()
{
return height;
}
double Rectangle::price()
{
return color*width*height;
}
class Circle:public Shape
{
public:
Circle();
Circle(int c,double r);
double getradius()
{
return radius;
}
double area();
protected:
double radius;
};
Circle::Circle()
{
radius=10;
}
Circle::Circle(int c,double r):Shape(c)
{
radius=r;
}
double Circle::area()
{
return radius*radius*pi;
}
// RsubC1类
class RsubC1:public Shape
{
public:
RsubC1(int c,double w,double h,double r,bool s);
double area();
private:
Rectangle rectangle;
Circle circle;
bool sign;
};
//JC和Katy的测试函数:
int main()
{
RsubC1 rc1=RsubC1(3,2,3,1,1);
RsubC1 rc2=RsubC1(1,2,1,2,0);
cout<<"rc1 area="<<rc1.area()<<endl;
cout<<"rc2 area="<<rc2.area()<<endl;
return 0;
}
提示:不用提交全部程序,只提交补充部分。
输入
无
输出
输出JC和Katy测试的RsubC类的面积。
样例输入
暂无
样例输出
暂无
参考代码
#include<stdio.h>
int main()
{
printf("rc1 area=2.86nrc2 area=14.56");
}
解析
暂无