파이썬3 계산기

#import Tkinter toolkit#

from tkinter import*

 

#key press function:

def click1():

num=1

entry.insert(END,num)

def click2():

num=2

entry.insert(END,num)

def click3():

num=1

entry.insert(END,num)

def click4():

num='+'

entry.insert(END,num)

def click5():

num=4

entry.insert(END,num)

def click6():

num=5

entry.insert(END,num)

def click7():

num=6

entry.insert(END,num)

def click8():

num='-'

entry.insert(END,num)

def click9():

num=7

entry.insert(END,num)

def click10():

num=8

entry.insert(END,num)

def click11():

num=9

entry.insert(END,num)

def click12():

num='*'

entry.insert(END,num)

def click13():

entry.delete(0,END)

def click14():

num=0

entry.insert(END,num)

def click15():

output=entry.get()

numsum=str(eval(output))

entry.delete(0,END)

entry.insert(END,numsum)

def click16():

num='/'

entry.insert(END,num)

# main:#

window = Tk()

 

#Run mainloop#

window.title("Calculator")

 

#create text entry box

entry=Entry(window,width=20,bg="yellow")

entry.grid(row=0,column=0,columnspan=4,sticky=W)

 

Button(window,text="1",width=5,command=click1).grid(row=1,column=0,sticky=W)

Button(window,text="2",width=5,command=click2).grid(row=1,column=1,sticky=W)

Button(window,text="3",width=5,command=click3).grid(row=1,column=2,sticky=W)

Button(window,text="+",width=5,command=click4).grid(row=1,column=3,sticky=W)

 

Button(window,text="4",width=5,command=click5).grid(row=2,column=0,sticky=W)

Button(window,text="5",width=5,command=click6).grid(row=2,column=1,sticky=W)

Button(window,text="6",width=5,command=click7).grid(row=2,column=2,sticky=W)

Button(window,text="-",width=5,command=click8).grid(row=2,column=3,sticky=W)

 

Button(window,text="7",width=5,command=click9).grid(row=3,column=0,sticky=W)

Button(window,text="8",width=5,command=click10).grid(row=3,column=1,sticky=W)

Button(window,text="9",width=5,command=click11).grid(row=3,column=2,sticky=W)

Button(window,text="*",width=5,command=click12).grid(row=3,column=3,sticky=W)

 

Button(window,text="c",width=5,command=click13).grid(row=4,column=0,sticky=W)

Button(window,text="0",width=5,command=click14).grid(row=4,column=1,sticky=W)

Button(window,text="=",width=5,command=click15).grid(row=4,column=2,sticky=W)

Button(window,text="/",width=5,command=click16).grid(row=4,column=3,sticky=W)

 

window.mainloop()