Detailed Explanation of GUI Label and Button Examples in python

As shown below:

#coding=utf-8
import Tkinter

top=Tkinter.Tk()
#400x300 Represents the size of the main window at initialization, 300,100 Represent the initialization position of the window, respectively 
#x: Is lowercase x
top.geometry('400x300+300+100')
# Create 1 A text box with the content of " hello world " 
lab=Tkinter.Label(top,text='hello world')
# Layout mode 
lab.pack()
# Create 1 Buttons 
button=Tkinter.Button(top,text='quit',command=top.quit,bg='red',fg='orange')
#expand Set 1  Enable fill Attribute 
#expand Set 0  Shut down fill Attribute 
#fill=X  When GUI When the form size changes, widget In X Direction following GUI Form change 
#fill=Y  When GUI When the form size changes, widget In Y Direction following GUI Form change 
#fill=BOTH  When GUI When the form size changes, widget In X , Y Two-direction following GUI Form change 
button.pack(fill=Tkinter.X,expand=1)
# Event monitoring 
Tkinter.mainloop()