发布于 2015-10-21 22:26:05 | 161 次阅读 | 评论: 0 | 来源: 网友投递
Python编程语言
Python 是一种面向对象、解释型计算机程序设计语言，由Guido van Rossum于1989年底发明，第一个公开发行版发行于1991年。Python语法简洁而清晰，具有丰富和强大的类库。它常被昵称为胶水语言，它能够把用其他语言制作的各种模块（尤其是C/C++）很轻松地联结在一起。
本文实例讲述了python使用PyGame播放Midi和Mp3文件的方法。分享给大家供大家参考。具体实现方法如下：
''' pg_midi_sound101.py
play midi music files (also mp3 files) using pygame
tested with Python273/331 and pygame192 by vegaseat
'''
import pygame as pg
def play_music(music_file):
'''
stream music with mixer.music module in blocking manner
this will stream the sound from disk while playing
'''
clock = pg.time.Clock()
try:
pg.mixer.music.load(music_file)
print("Music file {} loaded!".format(music_file))
except pygame.error:
print("File {} not found! {}".format(music_file, pg.get_error()))
return
pg.mixer.music.play()
# check if playback has finished
while pg.mixer.music.get_busy():
clock.tick(30)
# pick a midi or MP3 music file you have in the working folder
# or give full pathname
music_file = "Latin.mid"
#music_file = "Drumtrack.mp3"
freq = 44100 # audio CD quality
bitsize = -16 # unsigned 16 bit
channels = 2 # 1 is mono, 2 is stereo
buffer = 2048 # number of samples (experiment to get right sound)
pg.mixer.init(freq, bitsize, channels, buffer)
# optional volume 0 to 1.0
pg.mixer.music.set_volume(0.8)
try:
play_music(music_file)
except KeyboardInterrupt:
# if user hits Ctrl/C then exit
# (works only in console mode)
pg.mixer.music.fadeout(1000)
pg.mixer.music.stop()
raise SystemExit