背景介绍

Tkinter是一个Python GUI开发框架，能够创建窗口、按钮、标签等基本的用户界面。本项目旨在实现一个简易的计算器，支持加减乘除运算，并记录输入数字、输出运算结果，并提示运算过程。该计算器能够独立运行，无需依赖外部服务，是开发基础项目的好选择。

思路分析

1. 界面设计：使用Tkinter创建窗口，设置窗口大小，添加按钮以实现运算功能。
2. 数学逻辑：实现加减乘除的数学运算，保存输入数字，并计算结果。
3. 输入记录：记录用户输入的数字，通过变量保存，方便后续处理。
4. 运算过程提示：在计算结果时，显示运算步骤，增加程序的可读性和实用性。

代码实现

“`python
import tkinter as tk

def main():
# 创建主窗口
root = tk.Tk()
root.title(“简易GUI计算器”)
root.geometry(“800×600”)

# 保存运算结果和输入数字的变量
input_num = ""
result = 0
steps = []

# 添加按钮
buttons = [
    ("+","-","*","/"),
    ("0","1","2","3"),
    ("4","5","6","7"),
    ("8","9","0","."),
    ("=","C")
]

# 创建按钮
for i in range(16):
    btn = tk.Button(root, text=buttons[i][0], command=lambda x=buttons[i][0]:
        if x == "0" or x == "1":
            input_num = input_num + x
        else:
            result = int(x)
        steps.append(x)
    )

# 添加输入框
input_var = tk.StringVar()
input_box = tk.Entry(root, textvariable=input_var)
input_var.set("")
input_box.pack()

# 添加运算按钮
for i in range(4):
    btn = tk.Button(root, text=buttons[i][0], command=lambda x=buttons[i][0]:
        if x == "0" or x == "1":
            input_num = input_num + x
        else:
            result = int(x)
        steps.append(x)
    )

# 添加等于键
button_equal = tk.Button(root, text="=", command=lambda: calculate())
button_equal.pack(side="right")

# 计算函数
def calculate():
    try:
        result = int(input_num)
        result = result + result
        result = result + int(input_num)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)
        result = int(result)