slider-demo-1.py

来自「Python语言编译器」· Python 代码 · 共 37 行

from Tkinter import *

# shows how to make a slider, set and get its value under program control


class Test(Frame):
    def print_value(self, val):
	print "slider now at", val

    def reset(self): 
	self.slider.set(0)

    def createWidgets(self):
	self.slider = Scale(self, from_=0, to=100, 
			    orient=HORIZONTAL, 
			    length="3i", 
			    label="happy slider", 
			    command=self.print_value)

	self.reset = Button(self, text='reset slider', 
			    command=self.reset)

	self.QUIT = Button(self, text='QUIT', foreground='red', 
			   command=self.quit)

	self.slider.pack(side=LEFT)
	self.reset.pack(side=LEFT)
	self.QUIT.pack(side=LEFT, fill=BOTH)

    def __init__(self, master=None):
	Frame.__init__(self, master)
	Pack.config(self)
	self.createWidgets()

test = Test()
test.mainloop()