第四周任务一

wangmingxing123

于 2012-03-12 16:27:55 发布

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CC 4.0 BY-SA版权

文章标签：任务 float include c

本文链接：https://blog.youkuaiyun.com/wangmingxing123/article/details/7345467

#include <iostream>
#include <cmath>
using namespace std;
class Triangle
{
public:
	void Setabc(float x,float y,float z);
	void Getabc(float *x,float *y,float *z);
	float Perimeter(void);
	float Area(void);
private:
	float a,b,c;
};
void main(void)
{
	Triangle Tri1;
	Tri1.Setabc(4,5,6);
	float x,y,z;
	Tri1.Getabc(&x,&y,&z);
	cout<<"三条边为： "<<x<<'\t'<<y<<'\t'<<z<<endl;
	cout<<"三角形的周长为： "<<Tri1.Perimeter()<<'\t'<<"面积为："<<Tri1.Area()<<endl;
}
void Triangle::Setabc(float x,float y,float z)
{
	if(x+y>z && x+z>y && y+z>x)
	{
		a=x;
		b=y;
		c=z;
	}
}
void Triangle::Getabc(float *x,float *y,float *z)
{
	*x=a;
	*y=b;
	*z=c;
}
float Triangle::Perimeter(void)
{
	float m;
	m=a+b+c;
	return m;
}
float Triangle::Area(void)
{
	float s,m;
	s=(a+b+c)/2;
	m=sqrt(s*(s-a)*(s-b)*(s-c));
	return m;
}