如何在不同的方法中调用SoundPlayer类型变量

def play_sound(sound_player):
    sound_player.play()

# 调用方法时传入SoundPlayer类型的变量
player = SoundPlayer()
play_sound(player)

class SoundManager:
    def __init__(self):
        self.sound_player = SoundPlayer()

    def play_sound(self):
        self.sound_player.play()

    def stop_sound(self):
        self.sound_player.stop()

# 创建类的实例
manager = SoundManager()
manager.play_sound()
manager.stop_sound()

sound_player = SoundPlayer()

def play_sound():
    sound_player.play()

def stop_sound():
    sound_player.stop()

play_sound()
stop_sound()