Spyder使用turtle库提示Kernel died

<p><code class="brush:python;toolbar:false" >from turtle import * k=300 up() goto(-150, 90) down() forward(k/3) left(60) forward(k/3) left(-120) forward(k/3)</code></p><p>C:\ProgramData\Anaconda3\lib\site-packages\ipykernel\parentpoller.py:116: UserWarning: Parent poll failed. If the frontend dies,</p><p>the kernel may be left running. Please let us know</p><p>about your system (bitness, Python, etc.) at</p><p>ipython-dev@scipy.org</p><p>ipython-dev@scipy.org""")</p><p>Kernel died, restarting</p><p><img src="https://nos.netease.com/edu-image/0f31d55876024f93985ff25af8c17fc7.JPG" /></p><p>为什么不仅图出不了还出现一堆警告信息，尤其那个Kernel died是怎么回事？前些时候使用graphics模块也是这个情况，现在graphics模块又没这警告信息了但只能出现界面没有图形？graphics模块的遗留问题现在无法还原，代码及警告信息等具体见我原先的一个<a href="https://www.icourse163.org/learn/CSU-1003517003?tid=1003746005#/learn/forumdetail?pid=1211510201" target="_blank" >帖子</a>，那边closeVisableStatus取值是0（也就是说完全开放）老师应该能进的去</p>