python开发_tkinter_多级子菜单

在之前的blog中有提到python的tkinter中的菜单操作

python开发_tkinter_窗口控件_自己制作的Python IDEL_博主推荐

python开发_tkinter_窗口控件_自己制作的Python IDEL_博主推荐（二）

python开发_tkinter_菜单选项中英文切换_菜单选项不可用操作_博主推荐

python开发_tkinter_复选菜单

python开发_tkinter_单选菜单_不可用菜单操作

下面是tkinter的多级子菜单操作

运行效果：

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代码部分：

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 from tkinter import *

 __author__ = {'name' : 'Hongten',
               'mail' : 'hongtenzone@foxmail.com',
               'blog' : 'http://www.cnblogs.com/',
               'QQ': '',
               'created' : '2013-09-10'}

 def makeCascadeMenu():
     # make menu button
     Cascade_button = Menubutton(mBar, text='Cascading Menus', underline=0)
     Cascade_button.pack(side=LEFT, padx="2m")

     # the primary pulldown
     Cascade_button.menu = Menu(Cascade_button)

     # this is the menu that cascades from the primary pulldown....
     Cascade_button.menu.choices = Menu(Cascade_button.menu)

     # ...and this is a menu that cascades from that.
     Cascade_button.menu.choices.weirdones = Menu(Cascade_button.menu.choices)

     # then you define the menus from the deepest level on up.
     Cascade_button.menu.choices.weirdones.add_command(label='avacado', command=lambda:print('hello'))
     Cascade_button.menu.choices.weirdones.add_command(label='belgian endive')
     Cascade_button.menu.choices.weirdones.add_command(label='beefaroni')

     # definition of the menu one level up...
     Cascade_button.menu.choices.add_command(label='Chocolate')
     Cascade_button.menu.choices.add_command(label='Vanilla')
     Cascade_button.menu.choices.add_command(label='TuttiFruiti')
     Cascade_button.menu.choices.add_command(label='WopBopaLoopBapABopBamBoom')
     Cascade_button.menu.choices.add_command(label='Rocky Road')
     Cascade_button.menu.choices.add_command(label='BubbleGum')
     Cascade_button.menu.choices.add_cascade(
         label='Weird Flavors',
         menu=Cascade_button.menu.choices.weirdones)

     # and finally, the definition for the top level
     Cascade_button.menu.add_cascade(label='more choices',
                                     menu=Cascade_button.menu.choices)

     Cascade_button['menu'] = Cascade_button.menu

     return Cascade_button

 #################################################
 #### Main starts here ...
 root = Tk()
 root.geometry('600x300')

 # make a menu bar
 mBar = Frame(root, relief=RAISED, borderwidth=2)
 mBar.pack(fill=X)

 Cascade_button = makeCascadeMenu()

 mBar.tk_menuBar(Cascade_button)

 root.title('menu demo')
 root.iconname('menu demo')

 root.mainloop()