面向对象方法——求解点与圆的关系

#include<iostream>
using namespace std;
class MyPoint
{
public:
    void setPoint(int _x1, int _y1)
    {
        x1 = _x1;
        y1 = _y1;
    }
    int getX1()
    {
        return x1;
    }
    int getY1()
    {
        return y1;
    }
private:
    int x1;
    int y1;
};
class AdvCircle
{
public:
    void setCircle(int _r, int _x0, int _y0)
    {
        r = _r;
        x0 = _x0;
        y0 = _y0;
    }
public:
    int judge(MyPoint &myp)
    {
        int dd = (myp.getX1() - x0)*(myp.getX1() - x0) + (myp.getY1() - y0)*(myp.getY1() - y0);
        if (dd<=r*r)
        {
            return 1;//园内
        }
        else
        {
            return 0;
        }
    }
protected:
private:
    int r;
    int x0;
    int y0;
};




void main()
{
    AdvCircle c1;
    MyPoint p1;
    c1.setCircle(2, 3, 3);
    p1.setPoint(7, 7);
    //在圆形1，不在为0
    int tag=c1.judge(p1);
    if (tag==1)
    {
        cout << "在圆内" << endl;
    }
    else
    {
        cout << "不在圆内" << endl;
    }
    system("pause");
    return;
}