Swift 枚举简单使用

//定义一个枚举 Direction 枚举字符名字

enum Direction{
    case North
    case South
    case East
    case West
};

enum Direction2{
    case North, South, East, West
}

//声明一个枚举

var  d = Direction.North;
var  d2 = Direction.East;
var  d3 :Direction = .West;
// 相当于 C语言 的  自主赋值枚举
enum Course :Int {
    case android = 1,
            IOS  = 2,
    WindowsPhone = 5
}

d2 = .South; //因为 d2 肯定 是 Direction 的一个枚举类型 所以可以这么写
        
        switch  d2 {
        case .North :
            print("north")
            break
        case .South :
            print("south")
            break
        default:
            print("others")
        }
        
        let c = Course.IOS
        var v = c.rawValue //  把枚举类型转换为 Int 类型
        print("\(v)")

 

转载于:https://www.cnblogs.com/someonelikeyou/p/5039070.html