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原创于 2013-05-10 10:42:18 发布 · 742 阅读

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本文深入探讨了如何利用数学原理计算两点间的距离，并揭示了如何找到连接这两点的直线的中点。通过C++代码实例，展示了从点到线的几何距离计算和中点定位的过程，揭示了数学在计算机科学中的应用魅力。

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#include <iostream>
#include<Cmath>
using namespace std;
class Point{
public:
    Point(double x0=0,double y0=0):x(x0),y(y0){};
    inline double getx(){return x;}
    inline double gety(){return y;}
    void PrintPoint();
    private:
    double x,y;
};
void Point::PrintPoint(){
 cout<<"Point:("<<x<<","<<y<<")";
}
class Line:public Point
{
public:
  Line(Point pts,Point pte):pts(pts),pte(pte){};
  double Length();
  void PrintLine();
private:
 class Point pts,pte;
};
double Line::Length(){
  return sqrt((pts.getx()-pte.getx())*(pts.getx()-pte.getx())+(pts.gety()-pte.gety())*(pts.gety()-pte.gety()));

}
void Line::PrintLine(){
cout<<"point message: ("<<(pts.getx()-pte.getx())/2<<","<<(pts.gety()+pte.gety())/2<<")"<<endl;
}
int main(){
  Point ps(-2,5),pe(7,9);
  Line l(ps,pe);
  cout<<"\n The Length of line  ";
  cout<<l.Length()<<endl;
  cout<<"\n The minddle point of Line";
  l.PrintLine();
}

运行结果：