iOS-这是枚举的任务吗？

如果我想实现以下代码，枚举是否合适？我查了一些关于枚举的问题，但我还是有点不确定

if (dayOfWeek == Monday)
{
    // Do something
}
else if (dayOfWeek == Tuesday || dayOfWeek == Wednesday)
{
    // Do something else
}

---

如果这似乎是正确的，我将如何初始化枚举？它会放在头文件或实现文件中吗？

是的，这对枚举非常有用，请查看此SO帖子以了解枚举的构造：

此外，您还可以决定是否将枚举实现放在正在处理的类或头文件中

如果我想实现以下代码，枚举是否合适

没有太详细的备选方案——是的

如何初始化枚举

我通常在C中声明一个枚举，如下所示：

typedef enum MONDayOfWeek {
  MONDayOfWeek_Undefined = 0,
  MONDayOfWeek_Monday,
  MONDayOfWeek_Tuesday,
  MONDayOfWeek_Wednesday,
  MONDayOfWeek_Thursday,
  MONDayOfWeek_Friday,
  MONDayOfWeek_Saturday,
  MONDayOfWeek_Sunday
} MONDayOfWeek;

// in use:
MONDayOfWeek day = MONDayOfWeek_Monday;

MON

将是您的库或组织的前缀

DayOfWeek

将是库中的枚举名称，然后附加值

虽然这很冗长，但你倾向于很好地避免碰撞

它会放在头文件还是实现文件中

在标题中，如果希望多个文件使用它，请在实现文件中使用else

typedef enum MONDayOfWeek {
  MONDayOfWeek_Undefined = 0,
  MONDayOfWeek_Monday,
  MONDayOfWeek_Tuesday,
  MONDayOfWeek_Wednesday,
  MONDayOfWeek_Thursday,
  MONDayOfWeek_Friday,
  MONDayOfWeek_Saturday,
  MONDayOfWeek_Sunday
} MONDayOfWeek;

// in use:
MONDayOfWeek day = MONDayOfWeek_Monday;