C#王楠老师留的作业

本文最后更新于：7 months ago

题目
question
Human类

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace homework
{
    public class Human:Interface1
    {
        public Human()
        {

        }
        public Human(string name)
        {
            _name = name;

        }
        public Human(int age)
        {
            
               _age = age;
        }
        public Human(string name, int age) { _name = name; if (age > 0 && age < 130) { _age = age; }  }
        protected string _name;
        protected int _age;
        
        
        public virtual void introduce()
        {
            Console.WriteLine($"姓名：{_name}");
           
            if (_age == 0) { Console.WriteLine($"年龄:input is not legal"); }
            else { Console.WriteLine($"年龄：{_age}"); }
        }

        public void speak()
        {
            introduce();
        }
    }
}




Star,Singer,Producer类
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace homework
{
    public class Star : Human
    {   string _realm;
        int _outyear;
        public Star(string name, int age, string realm, int outyear) : base(name, age)
        {
            _realm = realm;
            _outyear = outyear;

        }
        public override void introduce()
        {
            base.introduce();
            Console.WriteLine($"出道时间:{_outyear}");
            Console.WriteLine($"领域：{_realm}");
        }

    }
    public class Singer:Star
    {
        string ?_song;
        public Singer(string name, int age, string realm, int outyear,string song) :base( name,  age,  realm,  outyear)
        {
            _song=song;
        }
        public override void introduce()
        {
            base.introduce();
            Console.WriteLine($"成名曲：{_song}");
        }

    }
    public class Producer : Star
    {
        string _movie;
        public Producer(string name, int age, string realm, int outyear, string movie) : base(name, age, realm, outyear)
        {
             _movie = movie;
        }
        public override void introduce()
        {
            base.introduce();
            Console.WriteLine($"成名电影:{_movie}");
            
        }


    }
}



接口Interface1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace homework
{
    public interface Interface1
    {
        void speak();
    }
}


Program 控制台程序入口
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
using System;
namespace homework
{
    class Program
    {
        static void Main(string[] args)
        {
            Producer leo = new Producer("leonardo dicaprio", 148,"movie actor",1990,"Titannic");
            leo.speak();
            Singer jay = new Singer("Jay Chou", 43, "rap", 2000, "晴天");
           jay.introduce();
            Star Dayao = new Star("Yao ming", 42, "basketball", 1998);
            Dayao.speak();
        }
    }
}

运行结果
result