我有一个类需要在其属性之一发生变化时调用委托(delegate)。以下是委托(delegate)的简化类和协议(protocol):protocolMyClassDelegate:class{funcvalueChanged(myClass:MyClass)}classMyClass{weakvardelegate:MyClassDelegate?varcurrentValue:Int{didSet{ifletactualDelegate=delegate{actualDelegate.valueChanged(self)}}}init(initialValue:Int){curren
