python实现的简单窗口倒计时界面实例

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