python怎么循环播放_如何用pyaudio循环播放音频？

我想用Pyaudio和tkinter播放一个音频波形文件&＃xff0c;当按下按钮时音频播放&＃xff0c;当按下停止按钮时音频停止。现在&＃xff0c;音频是一个简单的5秒波形文件&＃xff0c;正如它所设想的&＃xff0c;音频在5秒后停止。我想知道如何循环它&＃xff0c;这样的音频一直播放下去&＃xff0c;除非点击停止按钮。我找不到用这个密码的方法。在from tkinter import *

import pyaudio

import wave

import sys

import threading

# --- classes ---

def play_audio():

global is_playing

global my_thread

chunk &＃61; 1024

wf &＃61; wave.open(&＃39;sound.wav&＃39;, &＃39;rb&＃39;)

p &＃61; pyaudio.PyAudio()

stream &＃61; p.open(

format &＃61; p.get_format_from_width(wf.getsampwidth()),

channels &＃61; wf.getnchannels(),

rate &＃61; wf.getframerate(),

output &＃61; True)

data &＃61; wf.readframes(chunk)

while data !&＃61; &＃39;&＃39; and is_playing: # is_playing to stop playing

stream.write(data)

data &＃61; wf.readframes(chunk)

stream.stop_stream()

stream.close()

p.terminate()

# --- functions ---

def press_button_play():

global is_playing

global my_thread

if not is_playing:

is_playing &＃61; True

my_thread &＃61; threading.Thread(target&＃61;play_audio)

my_thread.start()

def press_button_stop():

global is_playing

global my_thread

if is_playing:

is_playing &＃61; False

my_thread.join()

# --- main ---

is_playing &＃61; False

my_thread &＃61; None

root &＃61; Tk()

root.title("Compose-O-Matic")

root.geometry("400x300")

button_start &＃61; Button(root, text&＃61;"PLAY", command&＃61;press_button_play)

button_start.grid()

button_stop &＃61; Button(root, text&＃61;"STOP", command&＃61;press_button_stop)

button_stop.grid()

root.mainloop()