枚举与结构体 - lovemu

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。

posted on 2011-11-28 10:26 lovemu 阅读(2878) 评论(0) 收藏举报

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