c# - 结构常量还是类？

Question

我需要存储一个有 5 个方向的数组，我想知道什么是最易读的方式。
我可以做阵列

 int myDirection[100] = {0,1,2,3,4,5,4,4,3,4,0......etc  // poor readability 

或者我可以使用常量并做

const up = 1;
const down = 2;  //... etc
int myDirection[100] = {up, down, center, right, left, .....etc 

或者我可以写一个结构

 struct direction
 { private byte mydirectionval;
   {
     public void direction Setup(){mydirection =1;}
     public void direction Setright(){mydirection=2;}
     public void direction Setdown(){mydirection=3;}
     public void direction Setleft(){mydirection=4;}
     public void direction Setcenter(){mydirection=0;}
     public direction Getdirection(){....              

   }
   direction newpath[100] = { ......

或者我应该写一个类

     public static class direction   // not sure use static here ?
     { private int direction =0;
       public const int Up = 1; 
       public const int left =2;
       public const int down = 3;
       public const int right = 4;
       public const int center = 0;
       public int getdirection(){return direction}
       public void int setdirection(int x){direction=x} 
     }
     direction mydir[100] = new direction;
     mydir[0].setdirection(up);  
     // or use it like 
     mydir[0]=mydir.up  //==> i prefer readability of code so this looks better?

好的，人们建议使用枚举，但是我需要一个枚举数组 mydir[100]
怎么做？？

Answer 1

使用 enum .

enum Direction 
{
up = 1, 
down = 2, 
center = 3, 
right = 4, 
left = 5
}

您可以在数组中使用它:

Direction[] myDirection = { Direction.left, Direction.up, Direction.right ... };

或

myDirection[0] = Direction.left; ...