第十五周實驗報告（一）

MyTriangle.hclass Triangle{public:Triangle(){a = 1; b = 1; c = 1;}Triangle(double x, double y, double z){a = x; b = y; c = z;}double area(void);double perimeter(void);private:double a, b, c;};

MyTriangle.cpp#include "stdafx.h"#include <Cmath>#include "MyTriangle.h"double Triangle::area(void){double s = (a + b + c) / 2;return sqrt(s * (s - a) * (s - b) * (s - c));}double Triangle::perimeter(void){return a + b + c;}

triangleDlg.cppvoid CtriangleDlg::OnBnClickedButton1(){// TODO: 在此添加控制項通知處理常式代碼UpdateData();Triangle t1(m_a, m_b, m_c);m_area = t1.area();UpdateData(FALSE);}void CtriangleDlg::OnBnClickedButton2(){// TODO: 在此添加控制項通知處理常式代碼    UpdateData();Triangle t1(m_a, m_b, m_c);m_perimeter = t1.perimeter();    UpdateData(FALSE);}