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Question

以下是代码：

import wx      
import random      
import time        
class MyPanel(wx.Panel):      
    """"""             

----------------------------------------------------------------------

def __init__(self, parent):
    """Constructor"""
    wx.Panel.__init__(self, parent)
    self.font = wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
    self.flashingText = wx.StaticText(self, label="BATTERY")
    self.flashingText.SetFont(self.font)
    self.timer = wx.Timer(self)
    self.Bind(wx.EVT_TIMER, self.update, self.timer)
    self.timer.Start(2000)
#----------------------------------------------------------------------
def update(self, event):
    """"""
    x=random.uniform(1,10)
    print(x)
    if x>5:
       self.flashingText.SetBackgroundColour('red')

    else:
        self.flashingText.SetBackgroundColour('white')

#

class MyFrame(wx.Frame):
    """ok"""
#----------------------------------------------------------------------
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, title="Flashing text!")
        panel = MyPanel(self)
        self.Show()

----------------------------------------------------------------------

if __name__ == "__main__":
    app = wx.App(False)
    frame = MyFrame()
    time.sleep(2)
    app.MainLoop()

尽管逻辑看起来很合理，但代码仍无法工作。如果可以的话，请纠正！

PS：请耐心等待，我是wxPython和GUI级别编程的初学者。

Answer 1

添加一个self。Refresh（）到更新方法的末尾，以获取statictext来更新其背景色

import wx
import random

class MyPanel(wx.Panel):
    """"""
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent)
        self.font = wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
        self.flashingText = wx.StaticText(self, label="BATTERY")
        self.flashingText.SetFont(self.font)
        self.timer = wx.Timer(self)
        self.Bind(wx.EVT_TIMER, self.update, self.timer)
        self.timer.Start(2000)
    def update(self, event):
        """"""
        x = random.uniform(1, 10)
        print(x)
        if x > 5:
            self.flashingText.SetBackgroundColour('red')
        else:
            self.flashingText.SetBackgroundColour('white')
        self.Refresh()

class MyFrame(wx.Frame):
    """ok"""
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, title="Flashing text!")
        panel = MyPanel(self)
        self.Show()

if __name__ == "__main__":
    app = wx.App(False)
    frame = MyFrame()
    app.MainLoop()