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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Directory :  /usr/lib64/python2.7/Demo/tkinter/matt/

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Current File : //usr/lib64/python2.7/Demo/tkinter/matt/rubber-line-demo-1.py
from Tkinter import *

class Test(Frame):
    def printit(self):
        print "hi"

    def createWidgets(self):
        self.QUIT = Button(self, text='QUIT',
                                  background='red',
                                  foreground='white',
                                  height=3,
                                  command=self.quit)
        self.QUIT.pack(side=BOTTOM, fill=BOTH)

        self.canvasObject = Canvas(self, width="5i", height="5i")
        self.canvasObject.pack(side=LEFT)

    def mouseDown(self, event):
        # canvas x and y take the screen coords from the event and translate
        # them into the coordinate system of the canvas object
        self.startx = self.canvasObject.canvasx(event.x)
        self.starty = self.canvasObject.canvasy(event.y)

    def mouseMotion(self, event):
        # canvas x and y take the screen coords from the event and translate
        # them into the coordinate system of the canvas object
        x = self.canvasObject.canvasx(event.x)
        y = self.canvasObject.canvasy(event.y)

        if (self.startx != event.x)  and (self.starty != event.y) :
            self.canvasObject.delete(self.rubberbandLine)
            self.rubberbandLine = self.canvasObject.create_line(
                self.startx, self.starty, x, y)
            # this flushes the output, making sure that
            # the rectangle makes it to the screen
            # before the next event is handled
            self.update_idletasks()

    def __init__(self, master=None):
        Frame.__init__(self, master)
        Pack.config(self)
        self.createWidgets()
        # this is a "tagOrId" for the rectangle we draw on the canvas
        self.rubberbandLine = None
        Widget.bind(self.canvasObject, "<Button-1>", self.mouseDown)
        Widget.bind(self.canvasObject, "<Button1-Motion>", self.mouseMotion)


test = Test()

test.mainloop()

haha - 2025