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python - 如何在 tkinter 中为我的重试按钮添加功能？

问题描述

我编写了一个代码，它生成两个数字并要求用户计算其总和并输入结果。程序运行良好，但我想要的是添加一个按钮，再次要求用户输入结果并验证。我面临的问题是该条目没有被清除，并且另一个窗口在具有相同条目的原始窗口下方打开。

import tkinter as tk
import random
window = tk.Tk()
content = tk.StringVar()
def startgame():
    number1 = random.randint(10, 51)
    number2 = random.randint(10, 51)
    sum_of_num = number1 + number2

    def checkresult():
        global content
        i = int(content.get())
        if i == sum_of_num:
            label = tk.Label(window, text = "Correct Result", fg = "blue").pack()
        else:
            label = tk.Label(window, text = "Incorrect result!! Try again.", fg = "red").pack()


    window.title("Number Guessing Game")
    label = tk.Label(window, text = "Let's begin the Quiz", fg = "blue").pack()
    label = tk.Label(window, text = "---------------------", fg = "blue").pack()
    label = tk.Label(window, text = "Given two numbers", fg = "blue").pack()
    label = tk.Label(window, text = number1, fg = "blue").pack()
    label = tk.Label(window, text = number2, fg = "blue").pack()
    label = tk.Label(window, text = "Add these two numbers and enter the result", fg = "blue").pack()

    sum_of_numbers = tk.Entry(window, textvariable = content)
    sum_of_numbers.pack()
    sum_of_numbers.focus_set()

    button_to_check_result = tk.Button(window, text="Check whether answer is correct", fg = "red", command = checkresult).pack()


startgame()    
button_to_try_again = tk.Button(window, text="Try Again !!", fg = "red", command = startgame).pack()
window.mainloop()

我希望再次清除输入的相同窗口。

标签： pythontkintertkinter-entry

解决方案

将整个段定义为一个函数：

label = tk.Label(window, text = "Let's begin the Quiz", fg = "blue").pack()
label = tk.Label(window, text = "---------------------", fg = "blue").pack()
label = tk.Label(window, text = "Given two numbers", fg = "blue").pack()
label = tk.Label(window, text = number1, fg = "blue").pack()
label = tk.Label(window, text = number2, fg = "blue").pack()
label = tk.Label(window, text = "Add these two numbers and enter the result", fg = "blue").pack()

然后将该功能绑定到您计划实现的“重置”按钮。或者，如果您想在用户每次按下“检查”按钮时重置，则可以在 checkresult() 中调用该函数。

本质上，您要做的是在现有标签上显示新标签。

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