類const const C中的令牌無效＃

Question

我知道這個問題以前在這裏問過，但我無法找到我的代碼有什麼問題。

 class Slider 
    { 
     public int const DEFAULT_SIZE = 20; // Problem is here. Invalid token in class 

    private int rise { get; set; } 
    private int run { get; set; } 
    private int size { get; set; } 

    int positionX = 0; 
    int positionY = 0; 

    private int leftBoundX { get; set;} 
    private int leftBoundY { get; set; } 

    private int rightBoundX { get; set; } 
    private int rightBoundY { get; set; } 

    // Constructor 
    Slider() 
    { 
     size = DEFAULT_SIZE; 
    } 

    private void Bound() 
    { 
     if (positionX > leftBoundX) 
      positionX = rightBoundX; 
     else if (positionY > leftBoundY) 
      positionY = rightBoundY; 
     else if (positionX > leftBoundX) 
      positionX = rightBoundX; 
     else if (positionX > leftBoundX) 
      positionX = rightBoundX; 
     } 

我用Google搜索的東西，他們告訴我，包括System.Collection和我沒有，但還是同樣的錯誤

Answer 1

的const修改必須是恆定的之前類型。你想：

public const int DEFAULT_SIZE = 20; 

或者遵循.NET命名約定：

public const int DefaultSize = 20;