我有一个Swift字典，键是字符串，值是Swift元组。我想将这本字典发送到其他设备，所以我需要在这本字典上实现NSCoding。任何人都可以帮助我如何实现这一目标。以下是我的字典代码。classSTCTruthDict:NSObject,NSCoding,SequenceType{typealiasIpRelationshipTuple=(String,String?)privatevartruthDict:[String:IpRelationshipTuple]=[:]subscript(key:String)->IpRelationshipTuple?{get{returnsel