과제들(계산기)

python 으로 GUI 계산기를 만들어 보았습니다.

import tkinter as tk

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 clear():
    global disValue, stoValue, opPre
    disValue = 0
    stoValue = 0    
    opPre = 0
    str_value.set(str(disValue))


def operator_click(value):
    # print('명령', value)
    global disValue, operator, stoValue, opPre
    op = operator[value]
    if op == 5:  # C
        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(str(disValue))
        disValue = 0
        stoValue = 0
        opPre = 0
    else:
        clear()




def button_click(value):
    # print(value)
    try:
        value = int(value)
        number_click(value)
    except:
        operator_click(value)
        



win = tk.Tk()
win.title('계산기')

str_value = tk.StringVar()
str_value.set(str(disValue))
dis = tk.Entry(win, textvariable=str_value, justify = 'right', bg = 'pink', fg = 'red')
dis.grid(column = 0, row = 0, columnspan = 4, ipadx = 140, ipady = 30)

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

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

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

        bt = tk.Button(win, 
             text=item, 
             width = 10, 
             height = 5,
             bg = 'black',
             fg=color,
             command = lambda cmd=item: button_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)




win.mainloop()