tkinter笔记二

from tkinter import *
class HelloButton(Button):
def __init__(self, parent=None, **config): # add callback method
Button.__init__(self, parent, **config) # and pack myself
self.pack() # could config style too
self.config(command=self.callback)
def callback(self): # default press action
print(‘Goodbye world...‘) # replace in subclasses
self.quit()
if __name__ == ‘__main__‘:
HelloButton(text=‘Hello subclass world‘).mainloop()

Button(win, text=‘Hello‘, command=greeting).pack(side=LEFT, anchor=N)
Label(win, text=‘Hello container world‘).pack(side=TOP)
Button(win, text=‘Quit‘, command=win.quit).pack(side=RIGHT)

from tkinter import *
class Hello(Frame): # an extended Frame
def __init__(self, parent=None):
Frame.__init__(self, parent) # do superclass init
self.pack()
self.data = 42
self.make_widgets() # attach widgets to self
def make_widgets(self):
widget = Button(self, text=‘Hello frame world!‘, command=self.message)
widget.pack(side=LEFT)
def message(self):
self.data += 1
print(‘Hello frame world %s!‘ % self.data)
if __name__ == ‘__main__‘: Hello().mainloop()

from tkinter import *
class HelloPackage: # not a widget subbclass
def __init__(self, parent=None):
self.top = Frame(parent) # embed a Frame
self.top.pack()
self.data = 0
self.make_widgets() # attach widgets to self.top
def make_widgets(self):
Button(self.top, text=‘Bye‘, command=self.top.quit).pack(side=LEFT)
Button(self.top, text=‘Hye‘, command=self.message).pack(side=RIGHT)
def message(self):
self.data += 1
print(‘Hello number‘, self.data)
if __name__ == ‘__main__‘: HelloPackage().top.mainloop()