第十五周 任务一

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.cpp#include "stdafx.h"#include "triangle.h"#include "triangleDlg.h"#include "MyTriangle.h"#ifdef _DEBUG#define new DEBUG_NEW#endif

 

buttonvoid CtriangleDlg::OnBnClickedButton1(){// TODO: Add your control notification handler code hereUpdateData(); //将把界面上各控件输入的值“捕获”到与之关联的变量中Triangle t1(m_a,m_b,m_c); //定义三角形对象m_area=t1.area(); //求面积UpdateData(FALSE); //用m_area的值更新界面上对应的控件的值并实现显示}void CtriangleDlg::OnBnClickedButton2(){// TODO: Add your control notification handler code hereUpdateData(); //将把界面上各控件输入的值“捕获”到与之关联的变量中Triangle t1(m_a,m_b,m_c); //定义三角形对象m_perimeter=t1.perimeter();//求周长UpdateData(FALSE); //用m_area的值更新界面上对应的控件的值并实现显示}

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