pygame+threading编写音乐播放器

一 代码

1. import os
2. import tkinter
3. import tkinter.filedialog
4. import random
5. import time
6. import threading
7. import pygame
9. folder =''
11. def play():
12. #默认播放D:\music文件夹中所有mp3文件
13. global folder
14. musics =[folder+'\\'+music for music in os.listdir(folder) \
15. if music.endswith(('.mp3','.wav','.ogg'))]
16. total = len(musics)
17. #初始化混音器设备
18. pygame.mixer.init()
19. while playing:
20. ifnot pygame.mixer.music.get_busy():
21. #随机播放一首歌曲
22. nextMusic = random.choice(musics)
23. pygame.mixer.music.load(nextMusic.encode())
24. #播放一次
25. pygame.mixer.music.play(1)
26. musicName.set('playing....'+nextMusic)
27. else:
28. time.sleep(0.3)
30. root = tkinter.Tk()
31. root.title('音乐播放器v1.0---cakin24')
32. root.geometry('280x70+400+300')
33. root.resizable(False,False)
35. #关闭程序时执行的代码
36. def closeWindow():
37. global playing
38. playing =False
39. try:
40. pygame.mixer.music.stop()
41. pygame.mixer.quit()
42. except:
43. pass
44. root.destroy()
45. root.protocol('WM_DELETE_WINDOW', closeWindow)
47. pause_resume = tkinter.StringVar(root, value='NotSet')
48. playing =False
50. #播放按钮
51. def buttonPlayClick():
52. global folder
53. ifnot folder:
54. folder = tkinter.filedialog.askdirectory()
55. ifnot folder:
56. return
57. global playing
58. playing =True
59. #创建一个线程来播放音乐
60. t = threading.Thread(target=play)
61. t.start()
62. #根据情况禁用和启用相应的按钮
63. buttonPlay['state']='disabled'
64. buttonStop['state']='normal'
65. buttonPause['state']='normal'
66. buttonNext['state']='normal'
67. pause_resume.set('Pause')
68. buttonPlay = tkinter.Button(root, text='Play', command=buttonPlayClick)
69. buttonPlay.place(x=20, y=10, width=50, height=20)
71. #停止按钮
72. def buttonStopClick():
73. global playing
74. playing =False
75. pygame.mixer.music.stop()
76. musicName.set('暂时没有播放音乐')
77. buttonPlay['state']='normal'
78. buttonStop['state']='disabled'
79. buttonPause['state']='disabled'
80. buttonStop = tkinter.Button(root, text='Stop', command=buttonStopClick)
81. buttonStop.place(x=80, y=10, width=50, height=20)
82. buttonStop['state']='disabled'
84. #暂停与恢复，两个功能共用一个按钮
85. def buttonPauseClick():
86. global playing
87. if pause_resume.get()=='Pause':
88. #playing = False
89. pygame.mixer.music.pause()
90. pause_resume.set('Resume')
91. elif pause_resume.get()=='Resume':
92. #playing = True
93. pygame.mixer.music.unpause()
94. pause_resume.set('Pause')
95. buttonPause = tkinter.Button(root, textvariable=pause_resume,
96. command=buttonPauseClick)
97. buttonPause.place(x=140, y=10, width=50, height=20)
98. buttonPause['state']='disabled'
100. #下一首音乐
101. def buttonNextClick():
102. global playing
103. playing =False
104. pygame.mixer.music.stop()
105. pygame.mixer.quit()
106. buttonPlayClick()
107. buttonNext = tkinter.Button(root, text='Next', command=buttonNextClick)
108. buttonNext.place(x=200, y=10, width=50, height=20)
109. buttonNext['state']='disabled'
111. musicName = tkinter.StringVar(root, value='暂时没有播放音乐...')
112. labelName = tkinter.Label(root, textvariable=musicName)
113. labelName.place(x=0, y=40, width=270, height=20)
115. #启动消息循环
116. root.mainloop()

二 运行结果