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  1. using System;
  2. using System.Collections;
  3. using System.Collections.Generic;
  4. using System.Linq;
  5. using System.Text;
  6.  
  7. enum ShapeColor { 红色, 绿色, 蓝色, 青色, 品红, 黄色, 黑色 }
  8. interface IDrawable
  9. {
  10.      void Draw();
  11. }
  12.  
  13. public class ShapeComparer : IComparer
  14. {
  15.     int Type;
  16.     public ShapeComparer(int Type)
  17.     {
  18.         this.Type = Type;
  19.     }
  20.    public  int Compare(object a, object b)
  21.     {
  22.          if(Type==0) //根据x排序
  23.           {
  24.               if (((Shape)a).CenterX > ((Shape)b).CenterX)
  25.                   return 1;
  26.               else if (((Shape)a).CenterX < ((Shape)b).CenterX)
  27.               {
  28.                   return -1;
  29.               }
  30.               else
  31.                   return 0;
  32.           }
  33.           else if(Type==1) //根据y排序
  34.           {
  35.               if (((Shape)a).CenterY > ((Shape)b).CenterY)
  36.                   return 1;
  37.               else if (((Shape)a).CenterY < ((Shape)b).CenterY)
  38.               {
  39.                   return -1;
  40.               }
  41.               else
  42.                   return 0;
  43.           }
  44.           else if(Type==2) //根据面积
  45.           {
  46.               if (((Shape)a).Area > ((Shape)b).Area)
  47.                   return 1;
  48.               else if (((Shape)a).Area < ((Shape)b).Area)
  49.               {
  50.                   return -1;
  51.               }
  52.               else
  53.                   return 0;
  54.           }
  55.           else //根据周长
  56.           {
  57.               if (((Shape)a).Perimeter > ((Shape)b).Perimeter)
  58.                   return 1;
  59.               else if (((Shape)a).Perimeter < ((Shape)b).Perimeter)
  60.               {
  61.                   return -1;
  62.               }
  63.               else
  64.                   return 0;
  65.           }
  66.     }
  67. }
  68.  
  69.  
  70. abstract class Shape:IDrawable, IComparable
  71. {
  72.     public double CenterX, CenterY, RadiusLong, RadiusShort;
  73.     public  int CompareTo(object o)
  74.     {              
  75.             if (RadiusLong > ((Shape)o).RadiusLong)
  76.                 return 1;
  77.             else if (RadiusLong == ((Shape)o).RadiusLong)
  78.                 return 0;
  79.             else
  80.                 return -1;                
  81.     }
  82.     public int Type;
  83.     public void Draw()
  84.     {
  85.         if (Type == 0)
  86.             System.Console.WriteLine($"用{LineColor}画圆形：圆心在({CenterX}, {CenterY})，半径为{RadiusLong}");
  87.         else
  88.             System.Console.WriteLine($"用{LineColor}画椭圆：圆心在({CenterX}, {CenterY})，长短半轴为({RadiusLong}, {RadiusShort})");
  89.  
  90.     }
  91.     public Shape(ShapeColor color, double CenterX, double CenterY, double RadiusLong, double RadiusShort, int Type)
  92.     {
  93.         LineColor = color;
  94.         this.CenterX = CenterX;
  95.         this.CenterY = CenterY;
  96.         this.Type = Type;
  97.         if (Type == 0)
  98.             this.RadiusLong = this.RadiusShort = RadiusShort;
  99.         else
  100.             this.RadiusLong = Math.Max(RadiusShort, RadiusLong); this.RadiusShort = Math.Min(RadiusLong, RadiusShort);
  101.     }
  102.     public double Area
  103.     {
  104.         get { return Math.PI * RadiusLong * RadiusShort; }
  105.     }
  106.     public double Perimeter
  107.     {
  108.         get { return 2 * Math.PI * RadiusShort + 4 * (RadiusLong - RadiusShort); }
  109.     }
  110.     public ShapeColor LineColor { get; set; }
  111. }
  112.  
  113.  
  114. class Ellipse :Shape
  115. {           
  116.     public Ellipse(ShapeColor color, double x, double y, double RL, double RS, int t) : base(color, x, y, RL, RS, t) { }
  117. }
  118.  
  119. class Program
  120. {
  121.     static void Main(string[] args)
  122.     {
  123.         Random rd = new Random();
  124.         Shape[] arrs = new Shape[10];
  125.         for(int i=0;i<10;i++)
  126.         {
  127.             arrs[i] = new Ellipse((ShapeColor)rd.Next(0, 7), rd.NextDouble() * 10, rd.NextDouble() * 10, rd.NextDouble() * 10, rd.NextDouble() * 10, rd.Next(0, 2));
  128.         }
  129.         Array.Sort(arrs);
  130.         for(int i=0;i<10;i++)
  131.         {
  132.             arrs[i].Draw();
  133.         }
  134.         Array.Sort(arrs, new ShapeComparer(1));//按Y坐标进行排序
  135.         System.Console.ReadKey();
  136.     }
  137. }
  138.  
Success #stdin #stdout 0.01s 131520KB
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用红色画椭圆：圆心在(6.12592910236024, 9.74948341015237)，长短半轴为(2.61966875876285, 0.356117491776178)
用品红画椭圆：圆心在(8.12488428695355, 1.72670178195774)，长短半轴为(4.4058599809212, 4.40212688613782)
用绿色画圆形：圆心在(9.58758796080369, 4.7557863848078)，半径为4.64485788468498
用黑色画圆形：圆心在(9.71539222622076, 8.69980688611968)，半径为5.14293387306059
用品红画椭圆：圆心在(2.94806713375639, 0.448584347240899)，长短半轴为(5.54093919021121, 3.213630273572)
用蓝色画椭圆：圆心在(9.5345923814618, 9.00718993461094)，长短半轴为(6.93360322012268, 0.722116395236047)
用黄色画圆形：圆心在(9.05100854069507, 5.87829523993577)，半径为7.28133565153989
用蓝色画椭圆：圆心在(7.72991999878079, 9.75711855560407)，长短半轴为(7.72606820693522, 6.50920364377517)
用绿色画椭圆：圆心在(1.49293672362945, 8.03865692021263)，长短半轴为(7.97429923805143, 1.66086334346834)
用绿色画椭圆：圆心在(5.69395975009257, 3.2331349063819)，长短半轴为(9.24725451471622, 2.10577183501132)
https://ideone.com/DQU51i
language:
C# (gmcs 5.20.1)
created:
5 years ago
visibility:
public

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