C 語言 - enum

enum - 列舉

    enum direction
    {
        North, // 0
        South, // 1
        East,  // 2
        West   // 3
    };

可搭配 typedef

    typedef enum direction Direction;

    enum direction
    {
        North,
        South,
        East,
        West
    };

    int main(void)
    {
        Direction dest = East;

        return 0;
    }

參考資料 :
https://michaelchen.tech/c-programming/enumeration/