小编lig*_*ega的帖子

当我在 Turtle 图形中运行无限循环绘图时单击 X（关闭）按钮时，会出现一些错误消息。

下面是一个例子：

import turtle

wn = turtle.Screen()
tess = turtle.Turtle()

while True:
    tess.forward(50)
    tess.left(120)
    tess.forward(50)

wn.mainloop()

当我关闭窗口时，会出现以下错误消息。

Traceback (most recent call last):
  File "/Users/user/Downloads/test.py", line 8, in <module>
    tess.forward(50)
  File "/Users/user/anaconda3/lib/python3.6/turtle.py", line 1637, in forward
    self._go(distance)
  File "/Users/user/anaconda3/lib/python3.6/turtle.py", line 1605, in _go
    self._goto(ende)
  File "/Users/user/anaconda3/lib/python3.6/turtle.py", line 3178, in _goto
    self._pencolor, self._pensize, top)
  File "/Users/user/anaconda3/lib/python3.6/turtle.py", line 545, in _drawline
    self.cv.coords(lineitem, *cl)
  File "<string>", line 1, in coords
  File "/Users/user/anaconda3/lib/python3.6/tkinter/__init__.py", line 2463, in coords
    self.tk.call((self._w, 'coords') + args))]
_tkinter.TclError: …