python - 如何在 for 循环中等待用户单击 tkinter 按钮并给出一些答案，该循环会读取列表中的每个问题和答案

Question

设置：
系统：Windows 10 Home x64
Python 版本：3.7.4
软件：Pycharm 或 IDLE

我正在开发一个基本上由问答游戏组成的“应用程序”，但是当它进入循环时，程序不会等待任何用户点击答案按钮部分，代码只会在列表中的最后一个问题处运行（基本上继续我给出的每个问题（而不是等待任何按钮单击）（qaList），以按钮形式显示最后一个问题和该问题的可能答案。

我想当时给出一个问题，每次运行应用程序时随机排序，并在按钮形式上给出问题的可能答案，等待用户选择。然后在控制台上打印是对还是错，然后继续下一个问题，但我做不到。

我选择循环进行，因为像这样，当我想向程序添加更多问题时，我几乎可以毫不费力地做到这一点。

有什么方法可以让这个循环等待用户选择，然后在用户单击任何 anwser 按钮时继续？

我的（问题部分）代码：

import random
import tkinter as tk

width = 640  # Largura
height = 480  # Altura

# GUI SYSTEM
root = tk.Tk()
canvas = tk.Canvas(root, height=height, width=width)
canvas.pack()

def play_quiz():
    class pergunta_resposta:
        def __init__(self, question, answer, options):
            self.question = question
            self.answer = answer
            self.options = options

    # ===================list with  this order ('question', 'right answer', [3 other possible answers]===================
    qaList = [pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""]), 
              pergunta_resposta("", "", ["", "", ""])]

    # ===================randomise the order of the questions inside the list===================
    random.shuffle(qaList)

    # ===================for loop to go on every single question===================
    for Item in qaList:
        frame = tk.Frame(root, bg='white')
        frame.place(rely=0.05, relx=0.05, relheight=0.25, relwidth=0.9)
        ask = tk.Label(frame, text=Item.question, font=("Impact", 15))
        ask.pack(expand=True)

        possible = Item.options + [Item.answer]
        random.shuffle(possible)

        # ===================possible answers buttons functions===================
        def button(n):
            global correct
            if possible[n] == Item.answer:
                print('Right')
                correct = 1
            elif possible[n] != Item.answer:
                print('Wrong!')
                correct = 0

        # ===================frame for possible answers buttons===================
        frame1 = tk.Frame(root, bg='white')
        frame1.place(rely=0.35, relx=0.15, relheight=0.4, relwidth=0.7)

        # possible answers buttons
        answer1 = tk.Button(frame1, text=possible[0], font=("Impact", 15), command=lambda: button(0))
        answer1.pack(fill='both', expand=True)

        answer2 = tk.Button(frame1, text=possible[1], font=("Impact", 15), command=lambda: button(1))
        answer2.pack(fill='both', expand=True)

        answer3 = tk.Button(frame1, text=possible[2], font=("Impact", 15), command=lambda: button(2))
        answer3.pack(fill='both', expand=True)

        answer4 = tk.Button(frame1, text=possible[3], font=("Impact", 15), command=lambda: button(3))
        answer4.pack(fill='both', expand=True)

play_quiz()
root.mainloop()

标签： pythonpython-3.xfor-looptkinter