本文实例讲述了python实现的简单窗口倒计时界面。分享给大家供大家参考。具体分析如下：
下面的代码通过Tkinter制作windows窗口界面，然后时间了一个简单的倒计时功能，代码可以直接运行
#CountdownusingTkinter
fromTkinterimport*
importtime
importtkMessageBox
classApp:
def__init__(self,master):
frame=Frame(master)
frame.pack()
self.entryWidget=Entry(frame)
self.entryWidget["width"]=15
self.entryWidget.pack(side=LEFT)
self.hi_there=Button(frame,text="Start",command=self.start)
self.hi_there.pack(side=LEFT)
self.button=Button(frame,text="QUIT",fg="red",command=frame.quit)
self.button.pack(side=LEFT)
defstart(self):
text=self.entryWidget.get().strip()
iftext!="":
num=int(text)
self.countDown(num)
defcountDown(self,seconds):
lbl1.config(bg='yellow')
lbl1.config(height=3,font=('times',20,'bold'))
forkinrange(seconds,0,-1):
lbl1["text"]=k
root.update()
time.sleep(1)
lbl1.config(bg='red')
lbl1.config(fg='white')
lbl1["text"]="Timeup!"
tkMessageBox.showinfo("Timeup!","Timeup!")
defGetSource():
get_window=Tkinter.Toplevel(root)
get_window.title('SourceFile?')
Tkinter.Entry(get_window,width=30,
textvariable=source).pack()
Tkinter.Button(get_window,text="Change",
command=lambda:update_specs()).pack()
root=Tk()
root.title("Countdown")
lbl1=Label()
lbl1.pack(fill=BOTH,expand=1)
app=App(root)
root.mainloop()
希望本文所述对大家的Python程序设计有所帮助
