生成一个带画面的计算器的python程序

以下是一个简单的带画面的计算器的 Python 程序示例：

from tkinter import *

class Calculator:

    def __init__(self, master):
        self.master = master
        master.title("Calculator")

        # 创建显示屏
        self.display = Entry(master, width=20, font=("Arial", 16))
        self.display.grid(row=0, column=0, columnspan=4, pady=10)

        # 创建数字按钮
        button_7 = Button(master, text="7", width=5, height=2, command=lambda: self.button_click("7"))
        button_8 = Button(master, text="8", width=5, height=2, command=lambda: self.button_click("8"))
        button_9 = Button(master, text="9", width=5, height=2, command=lambda: self.button_click("9"))
        button_4 = Button(master, text="4", width=5, height=2, command=lambda: self.button_click("4"))
        button_5 = Button(master, text="5", width=5, height=2, command=lambda: self.button_click("5"))
        button_6 = Button(master, text="6", width=5, height=2, command=lambda: self.button_click("6"))
        button_1 = Button(master, text="1", width=5, height=2, command=lambda: self.button_click("1"))
        button_2 = Button(master, text="2", width=5, height=2, command=lambda: self.button_click("2"))
        button_3 = Button(master, text="3", width=5, height=2, command=lambda: self.button_click("3"))
        button_0 = Button(master, text="0", width=5, height=2, command=lambda: self.button_click("0"))

        # 创建运算符按钮
        button_add = Button(master, text="+", width=5, height=2, command=lambda: self.button_click("+"))
        button_subtract = Button(master, text="-", width=5, height=2, command=lambda: self.button_click("-"))
        button_multiply = Button(master, text="*", width=5, height=2, command=lambda: self.button_click("*"))
        button_divide = Button(master, text="/", width=5, height=2, command=lambda: self.button_click("/"))
        button_equal = Button(master, text="=", width=5, height=2, command=self.calculate)
        button_clear = Button(master, text="C", width=5, height=2, command=self.clear)

        # 将数字按钮和运算符按钮添加到网格中
        button_7.grid(row=1, column=0)
        button_8.grid(row=1, column=1)
        button_9.grid(row=1, column=2)
        button_add.grid(row=1, column=3)

        button_4.grid(row=2, column=0)
        button_5.grid(row=2, column=1)
        button_6.grid(row=2, column=2)
        button_subtract.grid(row=2, column=3)

        button_1.grid(row=3, column=0)
        button_2.grid(row=3, column=1)
        button_3.grid(row=3, column=2)
        button_multiply.grid(row=3, column=3)

        button_0.grid(row=4, column=0)
        button_clear.grid(row=4, column=1)
        button_divide.grid(row=4, column=2)
        button_equal.grid(row=4, column=3)

    # 定义按钮点击事件
    def button_click(self, number):
        current = str(self.display.get())
        self.display.delete(0, END)
        self.display.insert(0, current + number)

    # 定义计算结果事件
    def calculate(self):
        result = eval(self.display.get())
        self.display.delete(0, END)
        self.display.insert(0, result)

    # 定义清除事件
    def clear(self):
        self.display.delete(0, END)

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

这个程序使用了 Python 的 tkinter 库来创建 GUI 界面，实现了一个简单的计算器功能，包括数字按钮、运算符按钮、显示屏和计算结果等。你可以根据自己的需要进行修改和扩展。