📅  最后修改于: 2022-03-11 14:45:05.925000             🧑  作者: Mango
play_area = Turtle()
play_area.penup()
play_area.setposition((-300, -290))
play_area.pendown()
play_area.pensize(3)
for side in range(4):
play_area.forward(600)
play_area.left(90)
play_area.hideturtle()