python tkinter实现简单计算器功能

本文实例为大家分享了python tkinter实现简单计算器的具体代码，供大家参考，具体内容如下

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编程客栈 == '+':
    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(str(first_num - second_num))

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

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

  print(first_num, second_num, calculator_method)


def clear():
  global first_num, input_num_ls,编程客栈 calculator_method
  first_num = None
  input_num_ls = []
  calculator_method = None
  current_value.set(0)


def func():
  pass


# 主体窗口
window = tk.Tk()

# 设置窗口 标题
windhttp://www.cppcns.comow.title('简易计算器')

# 设置窗口 宽高
window.geometry('400x300')

# 添加user显示屏幕背景
screen_area = tk.Frame(width='400', height='100', bg='#ddd')
# 放置到window中
screen_area.pack()

# 示例设置显示的数据类
current_value = tk.StringVar()
current_value.set(0)

# 数字显示框
# anchor 文本相对于标签中心的位置  默认是center N S W E
show_screen_label = tk.Label(screen_area, textvariable=current_value, bg='white', width='400', height='2', font={'黑体', 40, 'bold'}, anchor='e')
show_screen_label.pack(padx=10, pady=6)

# 按键区域
button_area = tk.Frame(width='300', height='300', bg='#ccc')
button_area.pack(padx=10, pady=5)

# 添加button
tk.Button(button_area, text='C', width='5', height='1', command=lambda: clear()).grid(row='1', column='0')
tk.Button(button_area, text='+', width='5', height='1', command=lambda: append_calculator('+')).grid(row='1', column='1')
tk.Button(button_area, text='-', width='5', height='1', command=lambda: append_calculator('-')).grid(row='1', column='2')
tk.Button(button_area, text='*', width='5', height='1', command=lambda: append_calculator('*')).grid(row='1', column='3')
tk.Button(button_area, text='7', width='5', height='1', command=lambda: append_num('7')).grid(row='2', column='0')
tk.Button(button_area, text='8', width='5', height='1', command=lambda: append_num('8')).grid(row='2', column='1')
tk.Button(button_area, text='9', width='5', height='1', command=lambda: append_num('9')).grid(row='2', column='2')
tk.Button(button_area, text='/', width='5', height='1', command=lambda: append_calculator('/')).grid(row='2', column='3')
tk.Button(button_area, text='4', width='5', height='1', command=lambda: append_num('4')).grid(row='3', column='0')
tk.Button(button_area, text='5', widthtndpG='5', height='1', command=lambda: append_num('5')).grid(row='3', column='1')
tk.Button(button_area, text='6', width='5', height='1', command=lambda: append_num('6')).grid(row='3', column='2')
tk.Button(button_area, text='=', width='5', height='1', command=lambda: calculator_result()).grid(row='3', column='3')
tk.Button(button_area, text='1', width='5', height='1', command=lambda: append_num('1')).grid(row='4', column='0')
tk.Button(button_area,编程客栈 text='2', width='5', height='1', command=lambda: append_num('2')).grid(row='4', column='1')
tk.Button(button_area, text='3', width='5', height='1', command=lambda: append_num('3')).grid(row='4', column='2')
tk.Button(button_area, text='C', width='5', height='1', command=lambda: clear()).grid(row='4', column='3')

window.mainloop()

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。