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。 .
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Current File : //lib64/python2.7/lib-tk/tkColorChooser.py
# tk common color chooser dialogue
#
# this module provides an interface to the native color dialogue
# available in Tk 4.2 and newer.
#
# written by Fredrik Lundh, May 1997
#
# fixed initialcolor handling in August 1998
#

#
# options (all have default values):
#
# - initialcolor: color to mark as selected when dialog is displayed
#   (given as an RGB triplet or a Tk color string)
#
# - parent: which window to place the dialog on top of
#
# - title: dialog title
#

from tkCommonDialog import Dialog


#
# color chooser class

class Chooser(Dialog):
    "Ask for a color"

    command = "tk_chooseColor"

    def _fixoptions(self):
        try:
            # make sure initialcolor is a tk color string
            color = self.options["initialcolor"]
            if isinstance(color, tuple):
                # assume an RGB triplet
                self.options["initialcolor"] = "#%02x%02x%02x" % color
        except KeyError:
            pass

    def _fixresult(self, widget, result):
        # result can be somethings: an empty tuple, an empty string or
        # a Tcl_Obj, so this somewhat weird check handles that
        if not result or not str(result):
            return None, None # canceled

        # to simplify application code, the color chooser returns
        # an RGB tuple together with the Tk color string
        r, g, b = widget.winfo_rgb(result)
        return (r/256, g/256, b/256), str(result)


#
# convenience stuff

def askcolor(color = None, **options):
    "Ask for a color"

    if color:
        options = options.copy()
        options["initialcolor"] = color

    return Chooser(**options).show()


# --------------------------------------------------------------------
# test stuff

if __name__ == "__main__":
    print "color", askcolor()

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