turtle库练习

1、画一组同切圆

>>> import turtle

>>> turtle.circle(50)

>>> turtle.circle(80)
>>> turtle.circle(100)
>>> turtle.circle(60)
>>> turtle.circle(70)
>>> turtle.circle(90)

2、画一组同心圆

>>> import turtle

>>> turtle.up()
>>> turtle.goto(0,-10)
>>> turtle.down()
>>> turtle.circle(10)
>>> turtle.up()
>>> turtle.goto(0,-30)
>>> turtle.down()
>>> turtle.circle(30)
>>> turtle.up()
>>> turtle.goto(0,-50)
>>> turtle.down()
>>> turtle.circle(50)

3、画一个五角星

>>> import turtle

>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)

4、画一个黄色实心五角星

>>> import turtle

>>> turtle.color('yellow')
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.right(144)
>>> turtle.forward(50)
>>> turtle.fillcolor('yellow')