c ++返回枚举的函数？ [英] c++ Function to return an enum?

问题描述

所以我有一个名为paddleNS的名为paddleNS的名为paddle的内部paddleNS里面我有一个枚举称为color

So I have this namespace called paddleNS for the class called paddle, inside paddleNS I have an enum known as colour

namespace paddleNS
{
   enum COLOUR {WHITE = 0, RED = 1, PURPLE = 2, BLUE = 3, GREEN = 4, YELLOW = 5, ORANGE = 6};
}

class Paddle : public Entity
{
private:
    paddleNS::COLOUR colour;
public:
    void NextColour();
    void PreviousColour();
    void PaddleColour(paddleNS::COLOUR col) { colour = col; }
};

现在，我想知道的是如何创建一个函数，颜色目前也是有一个更简单的方法来返回它的文本形式，而不是一个值或者我更好只是使用开关来找出什么颜色是什么？

Now then, what I was wondering is how would I go about creating a function that will return what the colour currently is also is there an easier way to return it in text form instead of a value or am I better of just using a switch to figure out what the colour is?

推荐答案

只需按值返回枚举：

class Paddle : public Entity
{
  // as before...

  paddleNS::COLOUR currentColour() const { return colour; }
};

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