如下所示:
from turtle import*
import turtle
setup(800,700,300,50)
penup()
seth(90)
fd(100)
seth(0)
fd(-200)
pendown()
pensize(3)
pencolor(black)
seth(0)
fd(210)
seth(90)
fd(20)
seth(115)
circle(120,129)
seth(270)
fd(20)
seth(270)
fd(15)
seth(0)
fd(217)
seth(90)
fd(19)
penup()
seth(150)
fd(155)
pendow