1、结构体和枚举一样,都是在代码的主体外部声明的。
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5
6 namespace StructEnum
7 {
8 enum orientation : byte
9 {
10 north = 1,
11 south = 2,
12 east = 3,
13 west = 4
14 }
15 struct route
16 {
17 public orientation direction;
18 public double distance;
19
20 }
21 class Program
22 {
23 static void Main(string[] args)
24 {
25 route myRoute;
26 double myDistance;
27 int myDirection;
28 myDistance = Convert.ToDouble(Console.ReadLine());
29 myDirection = Convert.ToInt32(Console.ReadLine());
30 myRoute.distance = myDistance;
31 myRoute.direction = (orientation)myDirection;
32 Console.WriteLine("distance:{0},direction:{1}",myRoute.distance,myRoute.direction);
33 }
34 }
35 }
输入4 4
输出 4 west
2.C#结构体与C结构体类似
3.虽然枚举有类型,但是取枚举的值时,仍然需要进行类型转换
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5
6 namespace StructEnum
7 {
8 enum orientation:byte
9 {
10 north = 1,
11 south = 2,
12 east = 3,
13 west = 4
14 }
15 struct route
16 {
17 public orientation direction;
18 public double distance;
19 public int dirct;
20 }
21 class Program
22 {
23 static void Main(string[] args)
24 {
25 route myRoute,mRoute;
26 double myDistance;
27 int myDirection;
28 myDistance = Convert.ToDouble(Console.ReadLine());
29 myDirection = Convert.ToInt32(Console.ReadLine());
30 myRoute.distance = myDistance;
31 myRoute.direction = (orientation)myDirection;
32 mRoute.dirct = orientation.north; //output north
33 Console.WriteLine("distance:{0},direction:{1}",myRoute.distance,myRoute.direction);
34 Console.WriteLine("mRoute.dirct={0}",mRoute.dirct);
35 }
36 }
37 }
第32行,编辑错误。
把 mRoute.dirct = orientation.north; 改为 mRoute.dirct = (int)orientation.north;
输出mRoute.dirct = 1。