结构体

 1 using System;
 2 
 3 struct Point
 4 {
 5     public double x, y;
 6     
 7     public Point(int x, int y) {
 8         this.x = x;
 9         this.y = y;
10     }
11 
12     public double R(){
13         return Math.Sqrt(x*x+y*y);
14     }
15 }
16 
17 class Tes
18 {
19     static void Main() {
20         Point[] points = new Point[100];
21 
22         for (int i = 0; i < 100; i++)
23             points[i] = new Point(i, i*i);
24     }
25 }