Python程序冻结（使用熊猫和乌龟模块）

Question

问题是我的程序冻结了，我找不到问题：我正在一遍又一遍地重新阅读代码，我在这里搜索了，我也搜索过搜索，找不到原因。我看到了一个主题，一个编码器的程序由于无限循环而冻结，并在我的代码中寻找但没有看到它。这是下面的代码。谢谢您的宝贵时间！

ps我已经阅读了有关问题少的代码的建议，但是在我看来，每个部分都很重要，也许是因为我是新手。

首先，我将带有状态名称的CSV文件导入。它有50个州，看起来像这样：

state,x,y
Alabama,139,-77
Alaska,-204,-170
Arizona,-203,-40
etc...

现在这是我程序的代码：

import turtle
import pandas

screen = turtle.Screen()
screen.title("U.S. States Game")
# This belowe is the image with the blank_country where my guessed states names will be viewed. It use it as a background.
image = "blank_states_img.gif"
screen.addshape(image)
Tim = turtle.Turtle()
Tim.hideturtle()
Tim.penup()
turtle.shape(image)
print(screen.screensize())

states_data = pandas.read_csv("50_states.csv")
states_list = states_data.state.to_list()

number_of_states = len(states_list)
guessed_states = []
number_of_guessed_states = len(guessed_states)

answer_state = screen.textinput(title="Guess the state", prompt="What's another state's name?").title()
print(answer_state)

while number_of_guessed_states < 50:

    if answer_state == "Exit":
        missing_states = []
        for state in states_list:
            if state not in guessed_states:
                missing_states.append(state)
        new_data = pandas.DataFrame(missing_states)
        new_data.to_csv("states_to_learn.csv")
        break

    if answer_state in states_list:
        guessed_states.append(answer_state)
        current_state = states_data[states_data.state == answer_state]
        Tim.goto(int(current_state.x) - 15, int(current_state.y))
        Tim.pendown()
        Tim.write(answer_state, align="left", font=("Arial", 6, "bold"))
        Tim.penup()
        answer_state = screen.textinput(title=f"{number_of_guessed_states}/{number_of_states} states correct",
                                        prompt="What's another state's name?").title()
        states_list.pop(states_list.index(answer_state))

if number_of_guessed_states == number_of_states:
    Tim.goto(-30, 0)
    Tim.pendown()
    Tim.write("Congratulations. This doesn't make you smart, but you've guessed all the states and won.",
              font=("Arial", 10, "normal"))

Answer 1

代码的一个问题是，您锁定number_guessed_states在循环前的值中，也不要对其进行更新：

number_of_guessed_states = len(guessed_states)

因此，即使guesseed_states正在更改，nubme_guess_guessed_states不是。另外，这似乎是一个奇怪的选择：

screen.addshape(image)
...
turtle.shape(image)

vs.做：

screen.bgpic(image)

复制此提示：

answer_state = screen.textinput(...).title()

似乎错误容易出现，而不是将其放在循环的顶部。例如，这里：

answer_state = screen.textinput(...).title()
states_list.pop(states_list.index(answer_state))

您删除当前答案，但从未在循环之前从中删除答案。查看代码的以下返工是否按照您的意图运行：

from turtle import Screen, Turtle
import pandas

# This belowe is the image with the blank_country where my guessed states names will be viewed. It use it as a background.
image = "blank_states_img.gif"

screen = Screen()
screen.title("U.S. States Game")
screen.bgpic(image)

turtle = Turtle()
turtle.hideturtle()
turtle.penup()

states_data = pandas.read_csv("50_states.csv")
states_list = states_data.state.to_list()

number_of_states = len(states_list)
guessed_states = []

while len(guessed_states) < number_of_states:
    answer_state = screen.textinput(title=f"{len(guessed_states)}/{number_of_states} states correct", prompt="What's another state's name?").title()

    if answer_state == 'Exit':
        missing_states = []
        for state in states_list:
            if state not in guessed_states:
                missing_states.append(state)
        new_data = pandas.DataFrame(missing_states)
        new_data.to_csv("states_to_learn.csv")
        screen.bye()

    if answer_state in states_list:
        guessed_states.append(states_list.pop(states_list.index(answer_state)))
        current_state = states_data[states_data.state == answer_state]
        turtle.goto(int(current_state.x) - 15, int(current_state.y))
        turtle.write(answer_state, align='left', font=('Arial', 6, 'bold'))

if len(guessed_states) == number_of_states:
    turtle.goto(-30, 0)
    turtle.write("Congratulations. This doesn't make you smart, but you've guessed all the states and won.", font=('Arial', 10, 'normal'))

screen.mainloop()