问Return语句未返回

EN

def PoNanswer(voice_data):
  for i in pANSWER_LIST:
    if i in voice_data.split():
        print('true')
        return True
  for i in nANSWER_LIST:
    if i in voice_data.split():
        print('false')
        return False
  voice_data = record_audio('I did not get it. Please repeat')
  PoNanswer(voice_data)




class Command:
  def __init__(self, raw_command):
    self.raw_command = raw_command
    self.key_word = False
    self.action_word = False
    self.processing()
  def processing(self):
    print(self.raw_command)
    for i in self.raw_command.split():

        if i in COMMANDS_LIST:
            self.key_word = i
        elif i in ACTION_WORD_LIST:
            self.action_word = i


    if self.key_word == COMMANDS_LIST[0]:
        if self.action_word:
            speak('ordering...')
            main('-//-')
        else:
            if PoNanswer(record_audio(ADDITIONAL_QUESTIONS[0])):
                self.raw_command = self.raw_command + "order"
                print("mod")
                self.processing()
            else:
                speak('Okay')
                main('-//-')

            self.processing()