重复时命名的Skaction.playsoundfile崩溃-Sprite Kit

前声音变量

//initvar sound = SKAction.playSoundFileNamed("sound.mp3", waitForCompletion: false)var sound2 = SKAction.playSoundFileNamed("sound2.mp3", waitForCompletion: false)//in the pre call function when play sound:playSound(sound)...func playSound(soundVariable : SKAction){    runAction(soundVariable)   }