python编写一个程序,实现简单计算器窗口,包括两个数基本的加减乘除运算

好的，以下是一个简单的Python程序，用于创建一个基本的计算器窗口，可以进行加减乘除运算：

from tkinter import *

class Calculator:

    def __init__(self, master):
        
        self.master = master
        master.title("简单计算器")

        # 创建文本框
        self.display = Entry(master, width=35, borderwidth=5)
        self.display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

        # 创建按钮
        button_1 = Button(master, text="1", padx=40, pady=20, command=lambda: self.button_click(1))
        button_2 = Button(master, text="2", padx=40, pady=20, command=lambda: self.button_click(2))
        button_3 = Button(master, text="3", padx=40, pady=20, command=lambda: self.button_click(3))
        button_4 = Button(master, text="4", padx=40, pady=20, command=lambda: self.button_click(4))
        button_5 = Button(master, text="5", padx=40, pady=20, command=lambda: self.button_click(5))
        button_6 = Button(master, text="6", padx=40, pady=20, command=lambda: self.button_click(6))
        button_7 = Button(master, text="7", padx=40, pady=20, command=lambda: self.button_click(7))
        button_8 = Button(master, text="8", padx=40, pady=20, command=lambda: self.button_click(8))
        button_9 = Button(master, text="9", padx=40, pady=20, command=lambda: self.button_click(9))
        button_0 = Button(master, text="0", padx=40, pady=20, command=lambda: self.button_click(0))
        button_add = Button(master, text="+", padx=39, pady=20, command=self.button_add)
        button_subtract = Button(master, text="-", padx=41, pady=20, command=self.button_subtract)
        button_multiply = Button(master, text="*", padx=40, pady=20, command=self.button_multiply)
        button_divide = Button(master, text="/", padx=41, pady=20, command=self.button_divide)
        button_clear = Button(master, text="清空", padx=79, pady=20, command=self.button_clear)
        button_equal = Button(master, text="=", padx=91, pady=20, command=self.button_equal)

        # 将按钮放置在窗口上
        button_1.grid(row=3, column=0)
        button_2.grid(row=3, column=1)
        button_3.grid(row=3, column=2)

        button_4.grid(row=2, column=0)
        button_5.grid(row=2, column=1)
        button_6.grid(row=2, column=2)

        button_7.grid(row=1, column=0)
        button_8.grid(row=1, column=1)
        button_9.grid(row=1, column=2)

        button_0.grid(row=4, column=0)
        button_clear.grid(row=4, column=1, columnspan=2)
        button_add.grid(row=5, column=0)
        button_subtract.grid(row=6, column=0)
        button_multiply.grid(row=6, column=1)
        button_divide.grid(row=6, column=2)
        button_equal.grid(row=5, column=1, columnspan=2)

        self.first_number = None
        self.operation = None

    def button_click(self, number):
        current = self.display.get()
        self.display.delete(0, END)
        self.display.insert(0, str(current) + str(number))

    def button_clear(self):
        self.display.delete(0, END)
        self.first_number = None
        self.operation = None

    def button_add(self):
        self.first_number = float(self.display.get())
        self.operation = "add"
        self.display.delete(0, END)

    def button_subtract(self):
        self.first_number = float(self.display.get())
        self.operation = "subtract"
        self.display.delete(0, END)

    def button_multiply(self):
        self.first_number = float(self.display.get())
        self.operation = "multiply"
        self.display.delete(0, END)

    def button_divide(self):
        self.first_number = float(self.display.get())
        self.operation = "divide"
        self.display.delete(0, END)

    def button_equal(self):
        second_number = float(self.display.get())
        self.display.delete(0, END)

        if self.operation == "add":
            result = self.first_number + second_number
        elif self.operation == "subtract":
            result = self.first_number - second_number
        elif self.operation == "multiply":
            result = self.first_number * second_number
        elif self.operation == "divide":
            result = self.first_number / second_number

        self.display.insert(0, result)

root = Tk()
my_calculator = Calculator(root)
root.mainloop()

首先，我们导入了`tkinter`模块，并创建了一个名为`Calculator`的类。然后，我们创建了一个窗口，并在其中添加了一个文本框和一组按钮。每个按钮都有一个命令，用于执行相应的操作。

该程序定义了以下方法：

- `button_click()`：添加按钮的单击事件，用于将数字添加到文本框中。
- `button_clear()`：清空文本框和操作。
- `button_add()`：将第一个数字存储在变量`first_number`中，并将操作设置为“add”。
- `button_subtract()`：将第一个数字存储在变量`first_number`中，并将操作设置为“subtract”。
- `button_multiply()`：将第一个数字存储在变量`first_number`中，并将操作设置为“multiply”。
- `button_divide()`：将第一个数字存储在变量`first_number`中，并将操作设置为“divide”。
- `button_equal()`：将第二个数字从文本框中获取，并根据操作执行相应的计算。然后，将结果添加到文本框中。

最后，我们创建了一个`Calculator`对象，并运行主循环，以便用户可以使用该计算器窗口。