How to achieve such an effect , beginner , Only the simple maximum outline of the frame , It won't be like this ,( But my idea is to make an external connection and an internal connection if I really can't ）, I haven't found any information like this for a long time , Is there a big man to save the child , Just a key function or a few lines of code
turtle, Think of this figure as an infinite number of widths 1 The rectangle of . Then cycle to the right .
