让龟改变自己的形象

Question

我有一些代码，但不断收到此错误

Exception in Tkinter callback 
Traceback (most recent call last): 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 1699, in __call__ 
    return self.func(*args) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 686, in eventfun 
    fun() 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\RPG.py", line 21, in up 
    combat() 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\RPG.py", line 58, in combat 
    enemy.shape(image) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 2777, in shape 
    self.turtle._setshape(name) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 2506, in _setshape 
    self._item = screen._createimage(screen._shapes["blank"]._data) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 723, in _createimage 
    return self.cv.create_image(0, 0, image=image) 
    File "<string>", line 1, in create_image 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 2483, in create_image 
    return self._create('image', args, kw) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 2474, in _create 
    *(args + self._options(cnf, kw)))) 
_tkinter.TclError: image "pyimage1" doesn't exist 
Exception in Tkinter callback 
Traceback (most recent call last): 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 1699, in __call__ 
    return self.func(*args) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 686, in eventfun 
    fun() 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\RPG.py", line 21, in up 
    combat() 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\RPG.py", line 58, in combat 
    enemy.shape(image) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 2777, in shape 
    self.turtle._setshape(name) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 2506, in _setshape 
    self._item = screen._createimage(screen._shapes["blank"]._data) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\turtle.py", line 723, in _createimage 
    return self.cv.create_image(0, 0, image=image) 
    File "<string>", line 1, in create_image 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 2483, in create_image 
    return self._create('image', args, kw) 
    File "C:\Users\Travi\AppData\Local\Programs\Python\Python36-32\lib\tkinter\__init__.py", line 2474, in _create 
    *(args + self._options(cnf, kw)))) 
_tkinter.TclError: image "pyimage1" doesn't exist 

我到simplist程度代码

import os 
from turtle import Turtle,Screen 
print(os.getcwd()) 
os.chdir('C:\\Users\\Travi\\Downloads') 
print(os.getcwd()) 
screen.register_shape("Crawfish_attack.gif") 
Turtle.shape("Crawfish_attack.gif") 

Answer 1

试试这样说：

import os 
from turtle import Turtle, Screen 

print(os.getcwd()) 
os.chdir('C:\\Users\\Travi\\Downloads') 
print(os.getcwd()) 

screen = Screen() 
screen.register_shape('Crawfish_attack.gif') 

crawfish = Turtle() 
crawfish.shape('Crawfish_attack.gif') 

screen.exitonclick() 

您正在调用尚未创建的实例的方法，并在类上调用实例方法。如果您上面的作品，你也应该能够把这些结合起来：

​​

到：

crawfish = Turtle('Crawfish_attack.gif')