turtle库基础练习

1.画一组同切圆

import turtle
>>> turtle.circle(10)
>>> turtle.circle(30)
>>> turtle.circle(50)
>>> turtle.circle(70)
>>> turtle.circle(90)

>>> turtle.reset()

2.画一组同心圆

>>> turtle.circle(20)
>>> turtle.shape('turtle')
>>> turtle.up()
>>> turtle.goto(0,-20)
>>> turtle.down()
>>> turtle.circle(40)
>>> turtle.up()
>>> turtle.goto(0,-40)
>>> turtle.down()
>>> turtle.circle(60)
>>> turtle.up()
>>> turtle.goto(0,-60)
>>> turtle.down()
>>> turtle.circle(80)

3.画一个五角星

>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.reset()
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)

>>> turtle.reset()

4.画一个黄色实心五角星

>>> turtle.bgcolor('red')
>>> turtle.color('yellow')
>>> turtle.fillcolor('yellow')
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.left(144)
>>> turtle.forward(100)
>>> turtle.end_fill()