2017年10月2日 星期一

Hello, Tkinter

Hello, Tkinter



#In Python 2, it is called Tkinter, while in Python 3
"""Tkinter module:
       import Tkinter
       Or, more often:
       from Tkinter import *
       
    import Tkinter as Tk """

from tkinter import *

root = Tk()

w = Label(root, text="Hello, world!")
w.pack()

root.mainloop()

=======================


root = Tk()

Next, we create a Label widget as a child to the root window:

w = Label(root, text="Hello, world!")
w.pack()

A Label widget can display either text or an icon or other image. In this case, we use the text option to specify which text to display.

Next, we call the pack method on this widget. This tells it to size itself to fit the given text, and make itself visible. 

However, the window won’t appear until we’ve entered the Tkinter event loop:

root.mainloop()

The program will stay in the event loop until we close the window.

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