帮我用python写一个计算24点的小程序，它的原理是在1~9之间随机生成4个数，他们经过加减乘除运算一定能等于24（不考虑带括号的情况），然后把这些数显示在GUI界面，用户可以通过键盘的光标键改变运算符使等式成立。 使用Python GUI编程实现该程序。

好的，这里给出一个Python的GUI程序，实现计算24点的小游戏。

import random
import tkinter as tk

class Game24:
    def __init__(self):
        self.window = tk.Tk()
        self.window.title("计算24点")
        self.window.geometry("300x200")

        self.numbers = [random.randint(1, 9) for _ in range(4)]
        self.equation = tk.StringVar()
        self.equation.set(self.get_equation())
        self.label = tk.Label(self.window, textvariable=self.equation, font=("Arial", 18))
        self.label.pack(pady=10)

        self.operators = ["+", "-", "*", "/"]
        self.current_operator = tk.StringVar()
        self.current_operator.set(self.operators[0])
        self.operator_label = tk.Label(self.window, textvariable=self.current_operator, font=("Arial", 18))
        self.operator_label.pack(pady=10)

        self.window.bind("<Left>", self.change_operator)
        self.window.bind("<Right>", self.change_operator)

        self.answer_entry = tk.Entry(self.window, font=("Arial", 18))
        self.answer_entry.pack(pady=10)

        self.check_button = tk.Button(self.window, text="检查答案", font=("Arial", 12), command=self.check_answer)
        self.check_button.pack(pady=10)

        self.new_game_button = tk.Button(self.window, text="开始新游戏", font=("Arial", 12), command=self.start_new_game)
        self.new_game_button.pack(pady=10)

        self.window.mainloop()

    def get_equation(self):
        equation = str(self.numbers[0])
        for i in range(3):
            equation += " " + self.operators[random.randint(0, 3)] + " " + str(self.numbers[i + 1])
        return equation

    def change_operator(self, event):
        if event.keysym == "Left":
            index = (self.operators.index(self.current_operator.get()) - 1) % 4
        elif event.keysym == "Right":
            index = (self.operators.index(self.current_operator.get()) + 1) % 4
        self.current_operator.set(self.operators[index])

    def check_answer(self):
        answer = self.answer_entry.get()
        try:
            result = eval(self.equation.get().replace(self.current_operator.get(), answer))
            if result == 24:
                tk.messagebox.showinfo("恭喜", "答案正确！")
            else:
                tk.messagebox.showerror("很遗憾", "答案错误！")
        except:
            tk.messagebox.showerror("错误", "输入无效！")

    def start_new_game(self):
        self.numbers = [random.randint(1, 9) for _ in range(4)]
        self.equation.set(self.get_equation())
        self.current_operator.set(self.operators[0])
        self.answer_entry.delete(0, tk.END)

if __name__ == "__main__":
    game = Game24()

程序会生成一个Tkinter窗口，并在窗口中显示出等式和答案输入框。用户可以通过点击“开始新游戏”按钮来开始新的游戏，程序会重新生成四个随机数和一个等式。用户可以通过键盘的左右光标键来改变等式中的运算符，然后在答案输入框中输入答案，点击“检查答案”按钮来检查答案是否正确。