Tkinter 简单回调

from Tkinter import *
class App:
  frame = None
  def __init__(self,master):
      frame = Frame(master)
      frame.pack()
      self.button = Button(frame,text="Quit", fg="red", command = frame.quit)
      self.button.pack(side=LEFT)
      self.hi_there = Button(frame,text="Hello",command = self.say_hi)
      self.hi_there.pack(side=LEFT)
  def say_hi(self):
      print "hi there, everyone!"
root = Tk()
app = App(root)
root.mainloop()