python简易计算器-tkinter界面实现

效果图

直接上代码

import tkinter as tk

input_num_ls = []
first_num = None
calculator_method = None


def get_num(ls):

    new_ls = [10 ** i * float(num) for i, num in enumerate(ls)]

    ls_sum = sum(new_ls)

    if int(ls_sum) == ls_sum:
        return int(ls_sum)
    
    else:
        return ls_sum


def append_num(num):
    global input_num_ls
    if len(num) < 10:
        input_num_ls.append(num)
    else:
        input_num_ls.append(num[:10])

    current_value.set(get_num(input_num_ls))

    print(input_num_ls)


def append_calculator(method):
    global input_num_ls, first_num, calculator_method
    calculator_method = method
    first_num = get_num(input_num_ls)
    input_num_ls = []
    print('method', calculator_method)


def calculator_result():
    global first_num, input_num_ls, calculator_method

    second_num = get_num(input_num_ls)

    input_num_ls.clear()

    if calculator_method == '+':
        current_value.set(second_num + first_num)
        input_num_ls.append(str(second_num + first_num))

    elif calculator_method == '-':
        current_value.set(first_num - second_num)
        input_num_ls.append