一道c#练习题希望各位解答
一道c#练习题希望各位解答一下，还有如何使用icomparer这个接口进行比较枚举的值进行排序呢？
enum可以定义数值，按照数值排下就行，
icomparer
using System;
using System.Linq;
using System.Collections.Generic;
namespace ConsoleApp1
{
enum City
{
北京 = 0,
上海 = 1,
广州 = 2
}
class Person
{
public City city { get; set; }
public string name { get; set; }
}
class SortByCity : IComparer<Person>
{
public int Compare(Person x, Person y)
{
return x.city - y.city;
}
}
class Program
{
static void Main(string[] args)
{
var persons = new List<Person>{
new Person{name="姓名1",city=City.上海},
new Person{name="姓名2",city=City.北京},
new Person{name="姓名3",city=City.广州},
new Person{name="姓名4",city=City.北京}
};
persons.Sort(new SortByCity { });
Console.Write(String.Join("\n",persons.Select(i => i.name + "，" + i.city.ToString())));
Console.ReadKey();
}
}
}
怪物
using System;
using System.Linq;
using System.Collections.Generic;
namespace ConsoleApp1
{
enum MonsterType
{
精英怪,
小怪,
Boss
}
abstract class Monster
{
public string name { get; set; }
public abstract MonsterType type { get; }
public int Level { get; set; }
public abstract void StandUp();
public abstract void Run();
public abstract void Attack();
}
class Monster1 : Monster
{
public override MonsterType type { get => MonsterType.精英怪; }
public override void StandUp()
{
Console.WriteLine(this.type + "站立");
}
public override void Attack()
{
Console.WriteLine(this.type + "攻击");
}
public override void Run()
{
Console.WriteLine(this.type + "奔跑");
}
}
class Monster2 : Monster
{
public override MonsterType type { get => MonsterType.小怪; }
public override void StandUp()
{
Console.WriteLine(this.type + "站立");
}
public override void Attack()
{
Console.WriteLine(this.type + "攻击");
}
public override void Run()
{
Console.WriteLine(this.type + "奔跑");
}
}
class Monster3 : Monster
{
public override MonsterType type { get => MonsterType.Boss; }
public override void StandUp()
{
Console.WriteLine(this.type + "站立");
}
public override void Attack()
{
Console.WriteLine(this.type + "攻击");
}
public override void Run()
{
Console.WriteLine(this.type + "奔跑");
}
}
class MonsterManger
{
static MonsterManger mm = null;
public static MonsterManger MM
{
get
{
if (mm == null)
{
mm = new MonsterManger();
mm.kvMonster = new Dictionary<MonsterType, List<Monster>>();
}
return mm;
}
}
public Dictionary<MonsterType,List<Monster>> kvMonster { get; set; }
public void AddMonster(Monster m)
{
if (!kvMonster.ContainsKey(m.type)) kvMonster[m.type] = new List<Monster>();
kvMonster[m.type].Add(m);
}
public void RemoveMonster(Monster m)
{
kvMonster[m.type].Remove(m);
}
public void ShowMonster()
{
foreach (var kp in kvMonster)
{
Console.WriteLine(String.Join("\n", kp.Value.Select(i => i.name + "，" + i.type)));
Console.WriteLine();
}
}
}
class Program
{
static void Main(string[] args)
{
MonsterManger.MM.AddMonster(new Monster1 { name = "M1-1" });
MonsterManger.MM.AddMonster(new Monster1 { name = "M1-2" });
MonsterManger.MM.AddMonster(new Monster1 { name = "M1-3" });
MonsterManger.MM.AddMonster(new Monster2 { name = "M2-1" });
MonsterManger.MM.AddMonster(new Monster2 { name = "M2-2" });
MonsterManger.MM.AddMonster(new Monster2 { name = "M2-3" });
MonsterManger.MM.AddMonster(new Monster2 { name = "M2-4" });
MonsterManger.MM.AddMonster(new Monster2 { name = "M2-5" });
MonsterManger.MM.AddMonster(new Monster3 { name = "M3-1" });
MonsterManger.MM.ShowMonster();
Console.WriteLine("--------------");
MonsterManger.MM.RemoveMonster(MonsterManger.MM.kvMonster[MonsterType.小怪][1]);//删除M2-2小怪
MonsterManger.MM.ShowMonster();
Console.WriteLine("--------------");
MonsterManger.MM.RemoveMonster(MonsterManger.MM.kvMonster[MonsterType.小怪][1]);//删除M2-3小怪，注意下标，删除M2-2后下标会变化
MonsterManger.MM.ShowMonster();
Console.WriteLine("--------------");
MonsterManger.MM.RemoveMonster(MonsterManger.MM.kvMonster[MonsterType.精英怪][0]);//删除M1-1精英怪
MonsterManger.MM.ShowMonster();
Console.ReadKey();
}
}
}