Question

__author__ = "Jack Ashton"
from tkinter import *
import random

window = Tk()

canvas = Canvas(window, width=800, height=600, background="dark cyan")
canvas.pack_propagate(False)
placeholder = StringVar

#--------------------------------------------------------------------
#images
title_image = PhotoImage(file="title_image.png")
button_bg_image = PhotoImage(file="button_bg_image.png")
game_bg_image = PhotoImage(file="Untitled-3.png")
sprite_bg_image = PhotoImage(file="Untitled-4.png")
knight = None
dragon = None
#--------------------------------------------------------------------

def start(canvas):
    canvas.pack()
    main_menu()
    window.mainloop()

def main_menu():
    #--- globals ---#
    global title_image
    global button_bg_image
    global difficulty

    #--- images ---#
    title = canvas.create_image(402, 152, image=title_image)
    button_bg = canvas.create_image(402, 452, image=button_bg_image)

    #--- label ---#
    instruction_label = Label(text="To start the game choose a difficulty!")
    instruction_label.pack(side=TOP)

    #--- buttons ---#
    #- difficulty buttons -#
    difficulty_button_1 = Button(canvas, text="Easy", command=lambda: play_game("Easy", button_list))
    difficulty_button_1.place(width=100, x=100, y=450)
    difficulty_button_2 = Button(canvas, text="Medium", command=lambda: play_game("Medium", button_list))
    difficulty_button_2.place(width=100, x=275, y=450)
    difficulty_button_3 = Button(canvas, text="Hard", command=lambda: play_game("Hard", button_list))
    difficulty_button_3.place(width=100, x=425, y=450)
    difficulty_button_4 = Button(canvas, text="Insta-Death", command=lambda: play_game("Insta-Death", button_list))
    difficulty_button_4.place(width=100, x=600, y=450)

    #--- list of buttons ---#
    button_list = [instruction_label, difficulty_button_1, difficulty_button_2, difficulty_button_3, difficulty_button_4]
    #--- end of function ---#

def play_game(difficulty, button_list):
    #--- globals ---#
    global game_bg_image
    global sprite_bg_image
    global word_create
    global user_input

    clear_canvas(button_list) #removes start menu before the game is started

    #--- images ---#
    top_half_bg = canvas.create_image(402, 152, image=game_bg_image)
    bottom_half_bg = canvas.create_image(402, 452, image=sprite_bg_image)

    #--- labels and entry_field ---#
    labels = display_labels()
    user_input = create_entry_field()

    #--- get words ---#
    word_list = get_words() #stores a list of all the words from words.txt
    print("word list: ", word_list)
    word_create = (random.choice(word_list))
    create_text = canvas.create_text(415, 125, text=word_create, fill="black", font=("Arial", 20))

    #--- check word ---#
    window.bind("<Return>", check_word)
    #--- end of function ---#

def clear_canvas(button_list):
    canvas.delete(ALL)
    for list_item in button_list:
        list_item.destroy()
    #--- end of function ---#

def display_labels():
    level = 1
    display_level = Label(canvas, text="Level: {}".format(level), fg="white", bg="black")
    display_level.place(width=100, x=10, y=10)

    time = 1
    display_time = Label(canvas, text="Time: {}".format(time), fg="white", bg="black")

    wpm = 1
    display_wpm = Label(canvas, text="WPM: {}".format(wpm), fg="white", bg="black")

    points = 1
    display_points = Label(canvas, text="Points: {}".format(points), fg="white", bg="black")

    accuracy = 1
    display_accuracy = Label(canvas, text="Accuracy: {}".format(accuracy), fg="white", bg="black")

    label_list = [display_time, display_wpm, display_points, display_accuracy] #list of labels
    y_value = -15
    for list_item in label_list: #places labels on canvas at equal distance apart
        y_value += 25
        list_item.place(width=100, x=690, y=y_value)
    #--- end of function ---#

def create_entry_field():
    entry_field = Entry(canvas, textvariable=placeholder)
    entry_field.place(x=350, y=200)
    entry_field.focus_set()
    entered_text = entry_field.get()
    return entered_text
    #--- end of function ---#

def get_words():
    word_list = [] #stores a list of all the words from words.txt
    f = open("words.txt")
    for word in f.readlines(): #appends all words from words.txt to the word list for use in the program
        word_list.append(word.replace("\n", ""))
    return word_list

def check_word(event):
    global user_input
    global word_create

    if user_input == word_create:
        print("yup")
    else:
        print("wrong")

def end_menu():
    #--- end of function ---#
    pass

start(canvas)

当我在输入字段中输入文本时，即使它与创建的单词相同，它仍然无法识别。

这个程序应该是学校项目的打字游戏，它应该从文件中获取文本，然后在屏幕上显示，当文本输入到输入字段时，它应该检查它，如果纠正单词更改，如果为false，则必须重写单词并再次提交。我无法检查这个词是否正确。

Answer 1

您在创建后立即致电entry_field.get()。您必须等待调用该函数，直到用户有机会输入。在这种情况下，您应该在check_word内召唤它。

检查条目的Python不起作用

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