实现多个接口

1 /*
2 Example8_2.cs illustrates implementing multiple interfaces
3   */
4
5 using System;
6
7
8 // define the IDrivable interface
9 public interface IDrivable
10 {
11
12 // method declarations
13 void Start();
14 void Stop();
15
16 // property declaration
17 bool Started
18 {
19 get ;
20 }
21
22 }
23
24
25 // define the ISteerable interface
26 public interface ISteerable
27 {
28
29 // method declarations
30 void TurnLeft();
31 void TurnRight();
32
33 }
34
35
36 // Car class implements the IMovable interface
37 public class Car : IDrivable, ISteerable
38 {
39
40 // declare the underlying field used by the
41 // Started property of the IDrivable interface
42 private bool started = false ;
43
44 // implement the Start() method of the IDrivable interface
45 public void Start()
46 {
47 Console.WriteLine( " car started " );
48 started = true ;
49 }
50
51 // implement the Stop() methodof the IDrivable interface
52 public void Stop()
53 {
54 Console.WriteLine( " car stopped " );
55 started = false ;
56 }
57
58 // implement the Started property of the IDrivable interface
59 public bool Started
60 {
61 get
62 {
63 return started;
64 }
65 }
66
67 // implement the TurnLeft() method of the ISteerable interface
68 public void TurnLeft()
69 {
70 Console.WriteLine( " car turning left " );
71 }
72
73 // implement the TurnRight() method of the ISteerable interface
74 public void TurnRight()
75 {
76 Console.WriteLine( " car turning right " );
77 }
78
79 }
80
81
82 class Example8_2
83 {
84
85 public static void Main()
86 {
87
88 // create a Car object
89 Car myCar = new Car();
90
91 // call myCar.Start()
92 Console.WriteLine( " Calling myCar.Start() " );
93 myCar.Start();
94
95 // call myCar.TurnLeft()
96 Console.WriteLine( " Calling myCar.TurnLeft() " );
97 myCar.TurnLeft();
98
99 }
100
101 }