ios swift ：具有类型和值的枚举常量
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swift : Enum constant with type and value
提问by Mani
I know, enumeration constant should be like this in swift
我知道，枚举常量在swift中应该是这样的
enum CompassPoint {
case North
case South
case East
case West
}
But how can I assign value to first element, like Objective-C code as below
但是如何为第一个元素赋值，如下面的 Objective-C 代码
enum ShareButtonID : NSInteger
{
ShareButtonIDFB = 100,
ShareButtonIDTwitter,
ShareButtonIDGoogleplus
}ShareButtonID;
回答by kmikael
You need to give the enum a type and then set values, in the example below Northis set as 100, the rest will be 101, 102etc, just like in Cand Objective-C.
你需要给枚举类型，然后设置值，在下面的例子中North被设定为100，其余的将是101，102等等，就像在C和Objective-C。
enum CompassPoint: Int {
case North = 100, South, East, West
}
let rawNorth = CompassPoint.North.rawValue // => 100
let rawSouth = CompassPoint.South.rawValue // => 101
// etc.
Update: Replace toRaw()with rawValue.
更新：替换toRaw()为rawValue.
