2--三角形

最新推荐文章于 2022-06-10 23:59:19 发布

在迷茫中成长

最新推荐文章于 2022-06-10 23:59:19 发布

阅读量258

点赞数

CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/huangyong000/article/details/44616939

#include<iostream>
#include<Cmath>
using namespace std;
class Triangle
{
public:
    void setA(double x)
    {
        a=x;
    }
    void setB(double y)
    {
        b=y;
    }
    void setC(double z)
    {
        c=z;
    }
    double getA()
    {
        return a;
    }
    double getB()
    {
        return b;
    }
    double getC()
    {
        return c;
    }
    bool isTriangle();
    double perimeter(void);
    double area(void);
private:
    double a,b,c;
};
int main()
{
    Triangle tri1;
    double x,y,z;
    cout<<"输入三角形的三边:";
    cin>>x>>y>>z;
    tri1.setA(x);
    tri1.setB(y);
    tri1.setC(z);
    if(tri1.isTriangle())
    {
        cout<<"三条边为:"<<tri1.getA()<<','<<tri1.getB()<<','<<tri1.getC()<<endl;
        cout<<"三角形的周长为:"<<tri1.perimeter()<<'\t'<<"面积为："<<tri1.area()<<endl;
    }
    return 0;
}
bool Triangle::isTriangle()
{
    if(a+b>c&&a+c>b&&b+c>a)
        return true;
               else
                   return false;
}
double Triangle::perimeter(void)
{
    double f;
    f=a+b+c;
    return f;
}
double Triangle::area(void)
{
    double s,d;
    d=(a+b+c)/2;
    s=sqrt(d*(d-a)*(d-b)*(d-c));
    return s;
}