screen = getscreen（）错误

Question

前几天我决定做一个非常简单的游戏 - ＆＃34; Cookie Clicker＆＃34;。直到我偶然发现了一个getcreen错误，一切正常。也许你们知道这个问题的解决方案了吗？

回溯：

NameError: name 'getscreen' is not defined on line 41

我怀疑问题隐藏的部分代码：

def clicking():
if distance( cookie.pos() ) < 2:
COOKIE_COUNT = COOKIE_COUNT + 1

screen = getscreen()
screen.onclick( clicking )

整个代码：

import time
import turtle

screen = turtle.Screen()
image_COOKIEC = "COOKIEC.png"
image_COOKIEUN = "COOKIEUN.png"
image_UPGRADEBG = "UPGRADEBG.png"

cookie = turtle.Turtle()
COOKIE_COUNT = 0
COOKIE_COUNT1 = turtle.Turtle()
upgrade = turtle.Turtle()
upgrade1 = turtle.Turtle()
upgrade2 = turtle.Turtle()
upgrade3 = turtle.Turtle()
upgrade4 = turtle.Turtle()
upgrade5 = turtle.Turtle()

screen.addshape(image_COOKIEUN)
cookie.penup()
cookie.shape(image_COOKIEUN)
cookie.speed(0)
cookie.goto(0, 0)

COOKIE_COUNT1.speed(0)
COOKIE_COUNT1.penup()
COOKIE_COUNT1.hideturtle()
COOKIE_COUNT1.goto(-40, 170)
COOKIE_COUNT1.write("Cookies: %d" % COOKIE_COUNT, font=(None, 14, "bold"))

upgrade.speed(0)
upgrade.penup()
upgrade.hideturtle()
upgrade.goto(110, -190)
upgrade.write("Upgrades", font=(None, 12, "bold"))

def clicking():
  if distance( cookie.pos() ) < 2:
    COOKIE_COUNT = COOKIE_COUNT + 1

screen = getscreen()
screen.onclick( clicking )

Answer 1

你需要做：

screen = turtle.getscreen()

或

from turtle import getscreen
screen = getscreen()

就个人而言，我推荐第一种方法，因为它显示了getscreen的来源。