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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Current File : //lib64/python2.7/Demo/tkinter/matt/menu-simple.py

from Tkinter import *

# some vocabulary to keep from getting confused. This terminology
# is something I cooked up for this file, but follows the man pages
# pretty closely
#
#
#
#       This is a MENUBUTTON
#       V
# +-------------+
# |             |
#
# +------------++------------++------------+
# |            ||            ||            |
# |  File      ||  Edit      || Options    |   <-------- the MENUBAR
# |            ||            ||            |
# +------------++------------++------------+
# | New...         |
# | Open...        |
# | Print          |
# |                |  <------ This is a MENU. The lines of text in the menu are
# |                |                          MENU ENTRIES
# |                +---------------+
# | Open Files >   | file1         |
# |                | file2         |
# |                | another file  | <------ this cascading part is also a MENU
# +----------------|               |
#                  |               |
#                  |               |
#                  |               |
#                  +---------------+



def new_file():
    print "opening new file"


def open_file():
    print "opening OLD file"


def makeFileMenu():
    # make menu button : "File"
    File_button = Menubutton(mBar, text='File', underline=0)
    File_button.pack(side=LEFT, padx="1m")
    File_button.menu = Menu(File_button)

    # add an item. The first param is a menu entry type,
    # must be one of: "cascade", "checkbutton", "command", "radiobutton", "separator"
    # see menu-demo-2.py for examples of use
    File_button.menu.add_command(label='New...', underline=0,
                                 command=new_file)


    File_button.menu.add_command(label='Open...', underline=0,
                                 command=open_file)

    File_button.menu.add_command(label='Quit', underline=0,
                                 command='exit')

    # set up a pointer from the file menubutton back to the file menu
    File_button['menu'] = File_button.menu

    return File_button



def makeEditMenu():
    Edit_button = Menubutton(mBar, text='Edit', underline=0)
    Edit_button.pack(side=LEFT, padx="1m")
    Edit_button.menu = Menu(Edit_button)

    # just to be cute, let's disable the undo option:
    Edit_button.menu.add('command', label="Undo")
    # Since the tear-off bar is the 0th entry,
    # undo is the 1st entry...
    Edit_button.menu.entryconfig(1, state=DISABLED)

    # and these are just for show. No "command" callbacks attached.
    Edit_button.menu.add_command(label="Cut")
    Edit_button.menu.add_command(label="Copy")
    Edit_button.menu.add_command(label="Paste")

    # set up a pointer from the file menubutton back to the file menu
    Edit_button['menu'] = Edit_button.menu

    return Edit_button


#################################################

#### Main starts here ...
root = Tk()


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

File_button = makeFileMenu()
Edit_button = makeEditMenu()

# finally, install the buttons in the menu bar.
# This allows for scanning from one menubutton to the next.
mBar.tk_menuBar(File_button, Edit_button)

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

root.mainloop()

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