1
我想observationInfo
消息,但我只是得到地址打印observationInfo
時,按下面的代碼:如何在swift中獲取NsKeyValueObservationinfo?
let info = self.apple.observationInfo
print("\(info)") //0x0000000100605e50
debugPrint("\(info.memory)")//"()"
print("\(info.memory)") //()
如何獲得的observationInfo
整條消息?