代码示例不起作用,但我希望它能成功编译。下面的源代码中很好地描述了想法。您可以轻松地将其粘贴到Swiftplayground中。importUIKit//MARK:-BaseclasseswithgenericsclassFlowController{}classViewModel{letflowController:FlowControllerTypeinit(flowController:FlowControllerType){self.flowController=flowController}}classViewController>{varviewModel:ViewMode