/*
* Copyright (c) 2014, 烟台大学计算机学院
* All rights reserved.
* 作 者:王颖
* 完成日期:2014 年 3 月 25 日
* 版 本 号:v1.0
* 输入描述: 无
* 问题描述:矩形类的构造函数
* 问题分析:略
* 算法设计:略
*/
#include <iostream>
#include<cmath>
using namespace std;
class Triangle
{
private:
double a,b;
public :
Triangle(double ,double );
double perimeter();
double area();
void showMessage();
double duixiang();
void isTriangle();
};
void Triangle::showMessage()
{
cout<<"矩形的两边为:"<<a<<" "<<b<<endl;
cout<<"矩形的周长:"<<perimeter()<<",面积为:"<<area()<<endl;
cout<<"矩形的对角线为:"<<duixiang()<<endl;
}
Triangle::Triangle(double m,double n)
{
a=m;
b=n;
}
void Triangle::isTriangle()
{
if(a==b)
{
cout<<"您输入的数字构成了正方形"<<endl;
}
}
double Triangle::duixiang()
{
double p;
p=sqrt(a*a+b*b);
return p;
}
double Triangle::perimeter()
{
double l;
l=2*a+2*b;
return l;
}
double Triangle::area()
{
double s;
s=a*b;
return s;
}
int main()
{
Triangle tri1(3,4);
tri1.isTriangle();
tri1.showMessage();
Triangle tri2(4,4);
tri2.isTriangle();
tri2.showMessage();
return 0;
}