[내일배움캠프] 과제 - 파이썬으로 계산기 만들기

1. 내일배움캠프 과제 - 파이썬으로 계산기 만들기

• 파이썬 코드

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
    stoValue = 0
    opPre = 0
    disValue = 0
    str_value.set(str(disValue)) 

def oprator_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(str(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:
        oprator_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 = '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 = 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))

win.mainloop()

• 참조

  https://www.codingnow.co.kr/python/?q=YToxOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjt9&bmode=view&idx=5751558&t=board