from turtle import*
import turtle
color('red','yellow') #花的颜色
turtle.pensize(3)#笔的大小
begin_fill()
while True:
forward(300)
left(170)
if abs(pos())<1:
break
turtle.penup()
turtle.fd(-300)#向后移动
turtle.pendown()
turtle.pencolor("purple")#笔的颜色
turtle.pensize(2)
for i in range(36):
forward(100)
left(170)
end_fill()
done()
成果为: