turtle库基础练习

1）画一组同切圆

import turtle

turtle.shape('turtle')

turtle.circle(10)
turtle.circle(30)
turtle.circle(60)
turtle.circle(90)
turtle.circle(120)

2）画一组同心圆

import turtle

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

turtle.circle(20)
turtle.up()
turtle.goto(0,-20)
turtle.down()

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

turtle.circle(40)

3）画一个五角星

import turtle

turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)

4）画一个黄色实心五角星

import turtle

turtle.color('yellow')
turtle.fillcolor('yellow')

turtle.begin_fill()

turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)
turtle.left(144)
turtle.forward(80)

turtle.end_fill()

turtle.bgcolor('red')