1 #include<iostream>
2 using namespace std;
3 class MyPoint
4 {
5 public:
6 void setPoint(int _x1, int _y1)
7 {
8 x1 = _x1;
9 y1 = _y1;
10 }
11 int getX1()
12 {
13 return x1;
14 }
15 int getY1()
16 {
17 return y1;
18 }
19 private:
20 int x1;
21 int y1;
22 };
23 class AdvCircle
24 {
25 public:
26 void setCircle(int _r, int _x0, int _y0)
27 {
28 r = _r;
29 x0 = _x0;
30 y0 = _y0;
31 }
32 public:
33 int judge(MyPoint &myp)
34 {
35 int dd = (myp.getX1() - x0)*(myp.getX1() - x0) + (myp.getY1() - y0)*(myp.getY1() - y0);
36 if (dd<=r*r)
37 {
38 return 1;//园内
39 }
40 else
41 {
42 return 0;
43 }
44 }
45 protected:
46 private:
47 int r;
48 int x0;
49 int y0;
50 };
51
52
53
54
55 void main()
56 {
57 AdvCircle c1;
58 MyPoint p1;
59 c1.setCircle(2, 3, 3);
60 p1.setPoint(7, 7);
61 //在圆形1，不在为0
62 int tag=c1.judge(p1);
63 if (tag==1)
64 {
65 cout << "在圆内" << endl;
66 }
67 else
68 {
69 cout << "不在圆内" << endl;
70 }
71 system("pause");
72 return;
73 }
