python通过wxPython打开一个音频文件并播放的代码详解编程语言

这段代码片段使用wx.lib.filebrowsebutton.FileBrowseButton控件打开一个wav文件，使用wx.Sound播放

''' wx_lib_filebrowsebutton_sound.py 
select a sound file and play it 
wx.lib.filebrowsebutton.FileBrowseButton(parent, labelText, fileMask) 
(combines wx.TextCtrl and wxFileDialog widgets) 
wx.Sound(fileName, isResource=False) 
tested with Python27 and wxPython291  by  vegaseat  25jul2013 
''' 
import wx 
import wx.lib.filebrowsebutton 
class MyFrame(wx.Frame): 
    def __init__(self, parent, mytitle, mysize): 
        wx.Frame.__init__(self, parent, wx.ID_ANY, mytitle, 
            size=mysize) 
        self.SetBackgroundColour("green") 
        panel = wx.Panel(self) 
        # mask file browser to look for .wav sound files 
        self.fbb = wx.lib.filebrowsebutton.FileBrowseButton(panel, 
            labelText="Select a WAVE file:", fileMask="*.wav") 
        self.play_button = wx.Button(panel, wx.ID_ANY, ">> Play") 
        self.play_button.Bind(wx.EVT_BUTTON, self.onPlay) 
        # setup the layout with sizers 
        hsizer = wx.BoxSizer(wx.HORIZONTAL) 
        hsizer.Add(self.fbb, 1, wx.ALIGN_CENTER_VERTICAL) 
        hsizer.Add(self.play_button, 0, wx.ALIGN_CENTER_VERTICAL) 
        # create a border space 
        border = wx.BoxSizer(wx.VERTICAL) 
        border.Add(hsizer, 0, wx.EXPAND|wx.ALL, 10) 
        panel.SetSizer(border) 
    def onPlay(self, evt): 
        filename = self.fbb.GetValue() 
        self.sound = wx.Sound(filename) 
        # error handling ... 
        if self.sound.IsOk(): 
            self.sound.Play(wx.SOUND_ASYNC) 
        else: 
            wx.MessageBox("Missing or invalid sound file", "Error") 
app = wx.App(0) 
# create a MyFrame instance and show the frame 
mytitle = "wx.lib.filebrowsebutton and wx.Sound" 
width = 600 
height = 90 
MyFrame(None, mytitle, (width, height)).Show() 
app.MainLoop()