我有UIViewController(profileViewController),其中有collectionView,collectionView有headerCell其中有segmentedControl,当segmentedControl值改变时,我想老虎delegate方法但它不起作用,在这里是代码,这是collectioviewheadercell和协议(protocol)的类。importUIKit//ProtocolprotocolheaderCellSegmentedDelegate{funcchangeTabe(whichOne:String)}//HeaderCel