我已经宣布的错误类型 enum UserServicesError: ErrorType {
case UserNotLogged
}
,但我得到一个错误 Argument type 'UserServicesError' does not conform to expected type 'ErrorType' Type 'UserServicesError' does not
我有一个结构在这里,当Xcode中试图编译 public struct GATToIPPermissions : OptionSet {
public init(rawValue: UInt)
public static var read: GATToIPPermissions { get {}}
public static var write: GATToI
我有一个表示颜色此枚举,我增加了一些方法来方便地获得基于算术运算对原始的原始值的新实例: enum Color : Int
{
case Red = 0
case Green
case Blue
case Cyan
case Magenta
case Yellow
static func random() -> Colo