根据一下代码画出uml类图

part1

using System;
namespace xuqinan { 
public abstract class Animal 
{ 
  public abstract void cry(); 
  public abstract string getAnimalName(); 
}
 
 public class Simulator 
{ 
  public void playSound(Animal animal)
  { 
  Console.WriteLine("现在播放" +animal.getAnimalName() + "的声音"); animal.cry(); 
  } 
}

 public class Dog : Animal
{ 
  public override void cry() 
  { 
  Console.WriteLine("汪汪汪"); 
  }
  public override string getAnimalName()
  { return "旺财"; 
  } 
}

 public class Cat : Animal 
{ 
public override void cry() 
 {
  Console.WriteLine("喵喵喵"); 
 }
 public override string getAnimalName() 
 { 
 return "Tom"; 
 } 
}

public class Example 
{ 
  public static void main(string[] args) 
  { 
  Simulator simulator = new Simulator();    simulator.playSound(new Dog()); simulator.playSound(new Cat()); 
  } 
 } 
 }

类图说明：

Dog/Cat 与 Animal 存在泛化关系
Simulator 依赖于 Animal
Example 依赖于 Simulator/Dog/Cat

点击查看类图

part2

using System; 
using System.Collections; 
namespace xuqinan 
{ 
   public abstract class Song
   { 
     protected string title; 
     protected int duration; 
     public Song(string t)
     {
       title = t; 
     }
   public abstract void play(); 
  }
  //MP3类
  public class MP3 : Song 
  { 
   public MP3(string t):base(t) {}
   public override void play() 
    { 
      Console.WriteLine("MP3 dididi"); 
     } 
   }
   //Wav歌曲类 
   public class Wav : Song 
   { 
   Wav(string t) : base(t) {}
   public override void play() 
     { 
     Console.WriteLine("Wav dadada"); 
     } 
   }
   //歌单类 
   public class playList 
   { 
   private ArrayList songs; public playList() 
    {
      songs = new ArrayList(); 
    }
    public void add(Song t)
    { 
    songs.Add(t); 
    }
    public void playAll()
    { 
      foreach(Song song in songs) 
       {
         song.play(); 
       } 
    }
    public void randomPlayAll() { } 
    } 
}

类图说明：