太极圆

from turtle import *
setup(800, 800, 100, 100)
fillcolor('#FFFFFF')
begin_fill()
circle(100, 180)
circle(200, 180)
seth(180)
circle(-100, 180)
end_fill()
seth(90)
penup()
fd(85)
pendown()
seth(0)
fillcolor('#000000')
begin_fill()
circle(25)
end_fill()
seth(-90)
penup()
fd(85)
pendown()
seth(180)
fillcolor('#000000')
begin_fill()
circle(100, 180)
circle(200, 180)
seth(0)
circle(-100, 180)
end_fill()
seth(-90)
penup()
fd(85)
pendown()
seth(-180)
fillcolor('#FFFFFF')
begin_fill()
circle(25)
end_fill()
hideturtle()
done()