wxpython多线程防假死与线程间传递消息实例详解

import time
import wx
from threading import Thread
from wx.lib.pubsub import pub
class TestThread(Thread):
def __init__(self):
#线程实例化时立即启动
Thread.__init__(self)
self.start()
def run(self):
#线程执行的代码
for i in range(101):
time.sleep(0.03)
wx.CallAfter(pub.sendMessage, "update", msg=i)
time.sleep(0.5)
class MyForm ( wx.Frame ):
def __init__( self, parent ):
wx.Frame.__init__ ( self, parent, id = wx.ID_ANY, title = "www.OmegaXYZ.com", pos = wx.DefaultPosition, size = wx.Size( -1,-1 ), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL )
self.SetSizeHintsSz( wx.DefaultSize, wx.DefaultSize )
gSizer2 = wx.GridSizer( 0, 3, 0, 0 )
self.m_button2 = wx.Button( self, wx.ID_ANY, "执行线程", wx.DefaultPosition, wx.DefaultSize, 0 )
gSizer2.Add( self.m_button2, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5 )
self.m_staticText2 = wx.StaticText( self, wx.ID_ANY, "MyLabel", wx.DefaultPosition, wx.DefaultSize, 0 )
self.m_staticText2.Wrap( -1 )
gSizer2.Add( self.m_staticText2, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5 )
self.m_gauge1 = wx.Gauge( self, wx.ID_ANY, 100, wx.DefaultPosition, wx.DefaultSize, wx.GA_HORIZONTAL )
self.m_gauge1.SetValue( 0 )
gSizer2.Add( self.m_gauge1, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5 )
self.SetSizer( gSizer2 )
self.Layout()
gSizer2.Fit( self )
self.Centre( wx.BOTH )
self.m_button2.Bind( wx.EVT_BUTTON, self.onButton )
pub.subscribe(self.updateDisplay, "update")
def updateDisplay(self, msg):
t = msg
if isinstance(t, int):#如果是数字，说明线程正在执行，显示数字
self.m_staticText2.SetLabel("%s%%" % t)
self.m_gauge1.SetValue( t )
else:#否则线程未执行，将按钮重新开启
self.m_staticText2.SetLabel("%s" % t)
self.m_button2.Enable()
def onButton( self, event ):
TestThread()
self.m_staticText2.SetLabel("线程开始")
event.GetEventObject().Disable()
if __name__ == "__main__":
app = wx.App()
MyForm(None).Show()
app.MainLoop()