我已經宣佈的錯誤類型 enum UserServicesError: ErrorType {
case UserNotLogged
}
,但我得到一個錯誤 Argument type 'UserServicesError' does not conform to expected type 'ErrorType' Type 'UserServicesError' does not
我有一個結構在這裏,當Xcode中試圖編譯 public struct GATToIPPermissions : OptionSet {
public init(rawValue: UInt)
public static var read: GATToIPPermissions { get {}}
public static var write: GATToI
我有一個表示顏色此枚舉,我增加了一些方法來方便地獲得基於算術運算對原始的原始值的新實例: enum Color : Int
{
case Red = 0
case Green
case Blue
case Cyan
case Magenta
case Yellow
static func random() -> Colo