1 class Animal
 2     {
 3         static void Main(string[] args)
 4         {
 5             //方法一
 6             Animal animal1 = new Animal();
 7             animal1.Name = "兔子";
 8             animal1.Color = "白色";
 9             animal1.Speed = 20;
10             animal1.Run();
11             //方法二
12             Animal animal2 = new Animal("兔子", "黑色");
13             animal2.Run(30);
14             //方法三
15             Animal animal3 = new Animal("狗", "棕色", 50);
16             animal3.Run();
17             Console.WriteLine();
18         }
19         //构造函数重载
20         public Animal()
21         {
22         }
23         public Animal(string name, string color)
24         {
25             this.name = name;
26             this.color = color;
27         }
28         public Animal(string name, string color, int speed)
29         {
30 
31             this.name = name;
32 
33             this.color = color;
34 
35             this.speed = speed;
36         }
37         //名称
38         private string name;
39         public string Name
40         {
41             get { return name; }
42             set { name = value; }
43         }
44         //颜色
45         private string color;
46         public string Color
47         {
48             get { return color; }
49             set { color = value; }
50         }
51         //速度
52         private int speed;
53         public int Speed
54         {
55             get { return speed; }
56             set { speed = value; }
57         }
58         //方法的重载Run方法的不同实现
59         public void Run()
60         {
61             Console.WriteLine("一只" + this.color + "的" + this.name + "正在以" + this.speed + "Km/h的速度在奔跑\n");
62 
63         }
64         public void Run(int speed)
65         {
66 
67             Console.WriteLine("一只" + this.color + "的" + this.name + "正在以" + speed + "km/h的速度在奔跑\n");
68 
69         }
70 
71     }