在Swift中，字符串中的@selector(alldistributednotifications:)的等价物是什么

[NSDistributedNotificationCenter defaultCenter]AddObserver：Self Selector:@Selector(AllDistributedNotifications:)Name:@“com.apple.itunes.playerInfo”对象:@“com.apple.itunes.player”]；

我尝试了以下操作，但收到一条错误消息

NSDistributedNotificationCenter.defaultCenter().addObserver(self, selector: Selector(allDistributedNotifications), name: "com.apple.iTunes.playerInfo", object: "com.apple.iTunes.player")