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考慮下面這個簡單的程序:如何讓wxPython應用程序不斷更新和執行代碼?
import wx
class TestDraw(wx.Panel):
def __init__(self,parent=None,id=-1):
wx.Panel.__init__(self,parent,id,style=wx.TAB_TRAVERSAL)
self.SetBackgroundColour("#FFFFFF")
self.Bind(wx.EVT_PAINT,self.onPaint)
self.SetDoubleBuffered(True)
self.circleX=320
self.circleY=240
def onPaint(self, event):
event.Skip()
dc=wx.PaintDC(self)
dc.BeginDrawing()
dc.DrawCircle(self.circleX,self.circleY,100)
dc.EndDrawing()
class TestFrame(wx.Frame):
def __init__(self, parent, title):
wx.Frame.__init__(self, parent, title=title, size=(640,480))
self.mainPanel=TestDraw(self,-1)
self.Show(True)
app = wx.App(False)
frame = TestFrame(None,"Test App")
app.MainLoop()
我怎樣才能改變它,這樣我可以執行邏輯和以恆定速率重繪面板?我希望圓圈在屏幕上反彈,但我無法弄清楚我會改變它的x和y變量的地方。