小案例：用Python制作音乐播放器
以下是音乐播放器要实现的功能:
1.可以通过打开存放音频文件夹来添加音频
2.可以播放和暂停音频
3.可以设置播放音量
需要实现音频播放器的模块：
1.pygame的音频播放功能
2.easygui的fileopenbox函数与os的listdir函数
3.播放器的窗口和布局我们就是使用PySimpleGUI库来实现。
先给大家展示下程序:
首先，我们需要导入所有库:
from pygame import mixer
from PySimpleGUI import Window,Slider,B,T,LB,Frame
from easygui import diropenbox
from os import listdir然后是pygame音频的初始化:
mixer.init()
mixer.music.set_volume(1) #设置音量(0 - 1)要想选择播放的音频，我们就需要用列表来存储音频名称和路径
all_music = [] #所有音频的名称
all_music_path = [] #所有音频的路径然后就是窗口布局:
layout = [
[Frame('播放列表',
[
[T('音频播放列表',font = ('楷体',15))],
[LB(all_music,size = (60,10),key = '-music_list-')],
[T('正在播放: 空',font = ('楷体',12),key = '-playing-')]
],font = ('楷体',16))],
[T('音量设置',font = ('楷体',14)),Slider(range = (0,100),key = '-volume-',default_value = 100,orientation = 'h',enable_events = 1)],
[B('添加音频',font = ('楷体',14)),
B('开始播放',font = ('楷体',14)),
B('暂停',font = ('楷体',14)),
B('退出',font = ('楷体',14))
]
]接下来就是窗口的事件处理:
window = Window('音乐播放器',layout)
pause = False #做一个音频是否暂停的标记
while 1:
event,values = window.read()
if event in (None,'退出'):break
mixer.music.set_volume(values['-volume-'] / 100)
if event == '开始播放':
if pause:
mixer.music.unpause() #继续播放
else:
music = values['-music_list-']
if not len(music):
continue
else:
music = music[0]
if len(music) > 30:
window['-playing-'].update('正在播放: {}...'.format(music[:36]))
else:
window['-playing-'].update('正在播放: {}'.format(music))
mixer.music.load(all_music_path[all_music.index(music)])
mixer.music.play()
choose_music = True
elif event == '添加音频':
music_file = diropenbox()
all_music_path = all_music_path + [music_file + '\' + i for i in listdir(music_file) if i.endswith('.mp3')]
all_music = all_music + [i.split('\')[-1] for i in all_music_path]
window['-music_list-'].update(all_music)
elif event == '暂停':
if mixer.music.get_busy():
mixer.music.pause() #暂停
pause = True
else:
continue
window.close() #循环结束后就关闭窗口最后是源代码:
from pygame import mixer
from PySimpleGUI import Window,Slider,B,T,LB,Frame
from easygui import diropenbox
from os import listdir
mixer.init()
mixer.music.set_volume(1)
all_music = []
all_music_path = []
layout = [
[Frame('播放列表',
[
[T('音频播放列表',font = ('楷体',15))],
[LB(all_music,size = (60,10),key = '-music_list-')],
[T('正在播放: 空',font = ('楷体',12),key = '-playing-')]
],font = ('楷体',16))],
[T('音量设置',font = ('楷体',14)),Slider(range = (0,100),key = '-volume-',default_value = 100,orientation = 'h',enable_events = 1)],
[B('添加音频',font = ('楷体',14)),
B('开始播放',font = ('楷体',14)),
B('暂停',font = ('楷体',14)),
B('退出',font = ('楷体',14))
]
]
window = Window('音乐播放器',layout)
pause = False
while 1:
event,values = window.read()
if event in (None,'退出'):break
print(values)
mixer.music.set_volume(values['-volume-'] / 100)
if event == '开始播放':
if pause:
mixer.music.unpause() #继续播放
print('继续播放')
else:
music = values['-music_list-']
print(music)
if not len(music):
continue
else:
music = music[0]
if len(music) > 30:
window['-playing-'].update('正在播放: {}...'.format(music[:36]))
else:
window['-playing-'].update('正在播放: {}'.format(music))
mixer.music.load(all_music_path[all_music.index(music)])
mixer.music.play()
choose_music = True
print('重新播放')
elif event == '添加音频':
music_file = diropenbox()
print(music_file)
all_music_path = all_music_path + [music_file + '\' + i for i in listdir(music_file) if i.endswith('.mp3')]
all_music = all_music + [i.split('\')[-1] for i in all_music_path]
window['-music_list-'].update(all_music)
elif event == '暂停':
if mixer.music.get_busy():
mixer.music.pause() #暂停
pause = True
else:
continue
window.close()
以上就是全部内容,感谢大家的观看！