usepoint.cpp

来自「C++&datastructure书籍源码,以前外教提供现在与大家共享」· C++ 代码 · 共 30 行

#include <iostream>
using namespace std;

#include "point.h"

int main()
{
    Point p;
    Point q(3.0, 4.0);
    
    // print the points
    cout << "p = " << p << " q = " << q << endl;
    
    q.x *= 2; 
    q.y *= 2;
    cout << "q doubled = " << q << endl;
    
    p = q;
    if (p == q)
    {   cout << "points are now equal" << endl;
    }
    else
    {   cout << "points are NOT equal" << endl;
    }
    
    p = Point(0,0);
    cout << q.distanceFrom(p) << " = distance of q from " << p << endl;
    
    return 0;
}