python_cal.py

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, operator, stoValue, opPre
    stoValue = 0
    opPre = 0
    disValue = 0
    str_value.set(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(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')




disValue = 0
str_value = tk.StringVar()
str_value.set(str(disValue))
dis = tk.Entry(win, textvariable=str_value, justify='right', bg = 'white', fg='red')
dis.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: button_click(cmd)
        )
        bt.grid(column=k, row = (i+1))

# btn = tk.Button(win, text='1', width=10, height=5).grid(column=0, row = 1)
# btn = tk.Button(win, text='2', width=10, height=5).grid(column=1, row = 1)
# btn = tk.Button(win, text='3', width=10, height=5).grid(column=2, row = 1)
# btn = tk.Button(win, text='4', width=10, height=5).grid(column=3, row = 1)

# btn = tk.Button(win, text='5', width=10, height=5).grid(column=0, row = 2)
# btn = tk.Button(win, text='6', width=10, height=5).grid(column=1, row = 2)
# btn = tk.Button(win, text='7', width=10, height=5).grid(column=2, row = 2)
# btn = tk.Button(win, text='8', width=10, height=5).grid(column=3, row = 2)


# btn = tk.Button(win, text='9', width=10, height=5).grid(column=0, row = 3)
# btn = tk.Button(win, text='0', width=10, height=5).grid(column=1, row = 3)
# btn = tk.Button(win, text='+', width=10, height=5).grid(column=2, row = 3)
# btn = tk.Button(win, text='-', width=10, height=5).grid(column=3, row = 3)

# btn = tk.Button(win, text='/', width=10, height=5).grid(column=0, row = 4)
# btn = tk.Button(win, text='*', width=10, height=5).grid(column=1, row = 4)
# btn = tk.Button(win, text='C', width=10, height=5).grid(column=2, row = 4)
# btn = tk.Button(win, text='=', width=10, height=5).grid(column=3, row = 4)

win.mainloop()