python实例代码之弹出三个窗口

python弹出窗口的实现代码。
如下：

#!/bin/python
from Tkinter import *

def notdone():
    showerror('Not implemented', 'Not yet available')

def makemenu(win):
    top = Menu(win)
    win.config(menu=top)

    file = Menu(top)
    file.add_command(label='New...',  command=notdone,  underline=0)
    file.add_command(label='Open...', command=notdone,  underline=0)
    file.add_command(label='Quit',    command=win.quit, underline=0)
    top.add_cascade(label='File',     menu=file,        underline=0)

    edit = Menu(top, tearoff=0)
    edit.add_command(label='Cut',     command=notdone,  underline=0)
    edit.add_command(label='Paste',   command=notdone,  underline=0)
    edit.add_separator()
    top.add_cascade(label='Edit',     menu=edit,        underline=0)

    submenu = Menu(edit, tearoff=0)
    submenu.add_command(label='Spam', command=win.quit, underline=0)
    submenu.add_command(label='Eggs', command=notdone,  underline=0)
    edit.add_cascade(label='Stuff',   menu=submenu,     underline=0)

root = Tk()
for i in range(3):
    win = Toplevel(root)
    makemenu(win)
    Label(win, bg='black', height=5, width=15).pack(expand=YES, fill=BOTH)
Button(root, text="Bye", command=root.quit).pack()
root.mainloop()

效果图，如下：