python 播放音乐，读取声卡输入系列

# _*_ coding: utf-8 _*_
__author__ = 'pythonwu'
__date__ = "2018/7/23 10:33"

import pyaudio
import wave
import sys

# 定义数据流块
CHUNK = 1024

# if len(sys.argv) < 2:
#     print("Plays a wave file.

Usage: %s filename.wav" % sys.argv[0])
#     sys.exit(-1)

# 只读方式打开wav文件
wf = wave.open(r'林俊杰 - 可惜没如果.wav', 'rb')#(sys.argv[1], 'rb')

p = pyaudio.PyAudio()

# 打开数据流
stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),
                channels=wf.getnchannels(),
                rate=wf.getframerate(),
                output=True)

# 读取数据
data = wf.readframes(CHUNK)

# 播放
while data != '':
    stream.write(data)
    data = wf.readframes(CHUNK)

# 停止数据流
stream.stop_stream()
stream.close()

# 关闭 PyAudio
p.terminate()