1同心圆

>>>import turtle

>>> turtle.circle(20)

>>> turtle.up()

>>> turtle.goto(0,10)

>>> turtle.goto(0,-10)

>>> turtle.circle (30)

>>> turtle.down()

>>> turtle.circle (30)

>>> turtle.up()

>>> turtle.goto(0,-20)

>>> turtle.down()

>>> turtle.circle (40)

>>> turtle.up()

>>> turtle.goto(0,-50)

>>> turtle.down()

>>> turtle.circle (40)

>>> turtle.up()

>>>turtle.down()

>>> turtle.circle (70)

2同切圆

>>>turtle.circle(40)

>>> turtle.circle(30)

>>> turtle.circle(50)

>>> turtle.shape('turtle')

3五角星

turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

4填色五角星

>>> turtle.color('yellow')

>>> turtle.fillcolor('yellow')

>>> turtle.bgcolor('red')

>>> turtle.begin_fill()

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.right(144)

>>> turtle.forward (100)

>>> turtle.end_fill()