【发布时间】：2021-10-10 07:51:54
【问题描述】：
我正在使用 Python GUI 界面制作一个测验程序。选择开始按钮时，会生成一个随机的问题。用户接下来将选择 true 或 false，然后选择提交按钮。
我该怎么做？： 我需要根据答案检查用户尝试并显示“问题 X 正确”或“问题 X 不正确！在下面的“滚动文本”中。
import tkinter as tk
from tkinter import ttk, Label, scrolledtext, IntVar, Radiobutton
import random
class Python_Quiz:
def __init__(self):
self._win = tk.Tk() # call the constructor to create the top level container
self._win.resizable(False, False) # prevent it from being
# resized at both width and height
# self._window Title
self._win.title("Python Quiz - Try Out This Quiz") # give it a title
self._win.geometry("400x450") # give it an initial width and height
# Button
actionFrame = ttk.Frame(self._win)
actionFrame.pack()
# Start Button
self._start_btn = ttk.Button(actionFrame, text="Start")
self._start_btn.pack()
self._start_btn.bind('<Button-1>', self.start_btn_event)
# Use StringVar to Change the Label Text
self._myLabel_text = tk.StringVar()
self._myLabel_text.set("Question will appear here")
# Creating Question will appear here Label Widget
self._myLabel = Label(self._win, textvariable=self._myLabel_text)
# Show self._wing it onto the screen
self._myLabel.pack()
# Radio Button
radioFrame = ttk.Frame(self._win)
self._radValue = tk.IntVar() # integer variable for value of
# selected radio button
# default value is 1
radioFrame.pack()
self.i = IntVar() #Basically Links Any Radiobutton With The Variable=i.
# Use StringVar to Change the Option 1 Radio Button Text
self._option_1_text = tk.StringVar()
self._option_1_text.set("Option 1")
# Option 1 Radio Button
self._option_1_rdbtn = Radiobutton(radioFrame, textvariable=self._option_1_text, variable=self.i, value=1)
# Use StringVar to Change the Option 2 Radio Button Text
self._option_2_text = tk.StringVar()
self._option_2_text.set("Option 2")
# Option 2 Radio Button
self._option_2_rdbtn = Radiobutton(radioFrame, textvariable=self._option_2_text, variable=self.i, value=2)
self._option_1_rdbtn.pack()
self._option_2_rdbtn.pack()
actionFrame_2 = ttk.Frame(self._win)
actionFrame_2.pack()
# Submit Button
self._submit_btn = ttk.Button(actionFrame_2, text="Submit")
self._submit_btn.config(state = tk.DISABLED) # prevent clicking
self._submit_btn.grid(column=0, row=0)
# Next Button
self._next_btn = ttk.Button(actionFrame_2, text="Next")
self._next_btn.config(state = tk.DISABLED) # prevent clicking
self._next_btn.grid(column=1, row=0)
# Scrolled Text
outputFrame = ttk.Frame(self._win)
outputFrame.pack()
scrol_w = 50
scrol_h = 5
self._scrol_stxt = scrolledtext.ScrolledText(outputFrame,
width=scrol_w, height=scrol_h, font=("Helvetica", 15) , wrap=tk.WORD)
self._scrol_stxt.config(state = tk.DISABLED) # prevent editing
self._scrol_stxt.pack()
self._win.mainloop()
def start_btn_event(self, event):
self._scrol_stxt.config(state = tk.NORMAL) # prevent editing
# self._scrol_stxt.insert(tk.INSERT, """ Select answer and click Submit """)
self._scrol_stxt.insert(tk.INSERT,
"""\
Select answer and click Submit
""")
self._scrol_stxt.config(state = tk.DISABLED) # prevent editing
self._submit_btn.config(state = tk.NORMAL)
self._submit_btn.bind('<Button-1>', self.submit_event_handler)
self._myLabel_text.set(f"Q1. {random.choice(Random_Questions)}")
# self._myLabel_text.set(f"Q1. String type is immutable")
# self._myLabel_text.set(f"Q1. {Question_1}")
self._option_1_text.set("True")
self._option_2_text.set("False")
print("The Start Button Works")
self._start_btn.config(state = tk.DISABLED)
self._option_1_rdbtn.bind('<Button-1>', self.selection_event)
self._option_2_rdbtn.bind('<Button-1>', self.selection_event)
def submit_event_handler(self, event):
print("The Submit Button Works")
if (self.i.get() ==0):
self._scrol_stxt.config(state = tk.NORMAL) # prevent editing
self._scrol_stxt.insert(tk.INSERT,
"""\
Please select answer for Question 1
""")
self._scrol_stxt.config(state = tk.DISABLED) # prevent editing
self._next_btn.config(state = tk.DISABLED)
else:
self._next_btn.config(state = tk.NORMAL)
def check_guess(self, event):
""" check the user attempt against the answer and display either ‘Question X is correct’ or ‘Question X is incorrect!’. """
def selection_event(self, event):
selection = "You selected the option " + str(self.i.get())
print(selection)
questionBank = [
['Variable names cannot start with digit', True], \
["x='1'+1 is a valid statement", False], \
['= and == can be used interchangeably', False], \
['logical operator and has higher precedence than or', True], \
['String type is immutable', True], \
['x,y = y, x swaps the values of x and y', True], \
['2=x is a valid statement', False], \
['Variable names can be 50 letters long', True]
]
Question_1 = questionBank[0][0]
Question_2 = questionBank[1][0]
Question_3 = questionBank[2][0]
Question_4 = questionBank[3][0]
Question_5 = questionBank[4][0]
Question_6 = questionBank[5][0]
Question_7 = questionBank[6][0]
Question_8 = questionBank[7][0]
Question_1_ANS = questionBank[0][1]
Question_2_ANS = questionBank[1][1]
Question_3_ANS = questionBank[2][1]
Question_4_ANS = questionBank[3][1]
Question_5_ANS = questionBank[4][1]
Question_6_ANS = questionBank[5][1]
Question_7_ANS = questionBank[6][1]
Question_8_ANS = questionBank[7][1]
Random_Questions = [Question_1, Question_2, Question_3, Question_4, Question_5, Question_6, Question_7, Question_8]
def main():
Python_Quiz()
main()
输出：
预期输出：
【问题讨论】：