Python | calculator.py

[calculator.py]

 

import tkinter as tk
from turtle import st
# GUI 설계 후 
# 내부 logic 설계

disvalue = 0
operator = {'+':1, '-':2, '/':3, '*':4, 'C':5, '=':6}
stovalue = 0
opPre = 0


def number_click(value) :
    # print('숫자 ', value)
    global disvalue
    disvalue = (disvalue * 10) + value
    str_value.set(disvalue)

def operator_click(value) : 
    # print('명령 ', value)
    global disvalue,operator, stovalue, opPre
    op = operator[value]

    if op == 5 : 
        clear
    elif disvalue == 0 :
        opPre = 0
    elif opPre == 0 : 
        opPre = op
        stovalue = disvalue
        disvalue = 0
        str_value.set(disvalue)
    elif op == 6 :
        if opPre == 1 :
            disvalue = stovalue + disvalue
        if opPre == 2 :
            disvalue = stovalue - disvalue
        if opPre == 3 :
            disvalue = stovalue / disvalue
        if opPre == 4 :
            disvalue = stovalue * disvalue

        str_value.set(disvalue)
        disvalue = 0
        stovalue = 0
        opPre = 0
    else : 
        clear()

    


def clear() :
    global disvalue, stovalue, opPre
    stovalue = 0
    opPre = 0
    disvalue = 0
    str_value.set(disvalue)



def btn_click(value) :
    print(value)

    try : 
        value = int(value)
        number_click(value)
    except : 
        operator_click(value)




win = tk.Tk()
win.title('calculaor')

str_value = tk.StringVar()
str_value.set(str(disvalue))
dis = tk.Entry(win, textvariable = str_value, justify = 'right', bg = 'white', fg = 'red').grid(column=0, row=0, columnspan = 4, ipadx=80, ipady=30)

calitem = [['1','2','3','4'],
            ['5','6','7','8'],
            ['9','0','+','-'],
            ['/','*','C','=']]

for i,items in enumerate(calitem) : 
    for k,item in enumerate(items) :

        try : 
            color = int(item)
            color = 'black'
        except : 
            color = 'green'

        bt =btn = tk.Button(win, 
                            text=item, 
                            width=10, 
                            height=5,
                            bg = color,
                            fg='white',
                            command = lambda cmd=item : btn_click(cmd)
                            )
        bt.grid(column=k, row=(i+1))

# btn = tk.Button(win, text='1', width=10, height=5)
# btn.grid(column=0, row=1)
# # btn = tk.Button(win, text='1', width=10, height=5).grid(column=0, row=1) 과 동일하게 표현 할 수 있음.



win.mainloop()