python完整代码，计算器，gui界面

这是一个用 Python 实现的简单计算器 GUI 程序的示例代码：

import tkinter as tk

class Calculator(tk.Tk):
    def __init__(self):
        super().__init__()
        self.create_widgets()

    def create_widgets(self):
        # 创建输入框
        self.input_text = tk.StringVar()
        self.input_entry = tk.Entry(self, textvariable=self.input_text)
        self.input_entry.pack()

        # 创建按钮
        self.button1 = tk.Button(self, text="1", command=lambda: self.update_input("1"))
        self.button1.pack()
        self.button2 = tk.Button(self, text="2", command=lambda: self.update_input("2"))
        self.button2.pack()
        self.button3 = tk.Button(self, text="3", command=lambda: self.update_input("3"))
        self.button3.pack()
        self.button4 = tk.Button(self, text="4", command=lambda: self.update_input("4"))
        self.button4.pack()
        self.button5 = tk.Button(self, text="5", command=lambda: self.update_input("5"))
        self.button5.pack()
        self.button6 = tk.Button(self, text="6", command=lambda: self.update_input("6"))
        self.button6.pack()
        self.button7 = tk.Button(self, text="7", command=lambda: self.update_input("7"))
        self.button7.pack()
        self.button8 = tk.Button(self, text="8", command=lambda: self.update_input("8"))
        self.button8.pack()
        self.button9 = tk.Button(self, text="9", command=lambda: self.update_input("9"))
        self.button9.pack()
        self.button0 = tk.Button(self, text="0", command=lambda: self.update_input("0"))
        self.button0.pack()
        self.button_add = tk.Button(self, text="+", command=lambda: self.update_input("+"))
        self.button_add.pack()
        self.button_subtract = tk.Button(self, text="-", command=lambda: self.update_input("-"))
        self.button_subtract.pack()
        self.button_multiply = tk.Button(self, text="*", command=lambda: self.update_input("*"))
        self.button_multiply.pack()
        self.button_divide = tk.Button(self, text="/", command=lambda: self.update_input("/"))
        self.button_divide.pack()
        self.button_equals = tk.Button(self