turtle库基础练习

画一组同切圆

import turtle
turtle.circle(50)
turtle.circle(40)
turtle.circle(30)
turtle.circle(20)
turtle.circle(10)

画一组同心圆

import turtle
turtle.circle(30)
turtle.up()
turtle.goto(0,-10)
turtle.down ()
turtle.circle(40)
turtle.up()
turtle.goto(0,-20)
turtle.down ()
turtle.circle(50)
turtle.up()
turtle.goto(0,-30)
turtle.down ()
turtle.circle(60)
turtle.up()
turtle.goto(0,-40)
turtle.down ()
turtle.circle(70)
turtle.up()
turtle.goto(0,-50)
turtle.down ()
turtle.circle(80)
turtle.up()
turtle.goto(0,-60)
turtle.down ()
turtle.circle(90)

画一个五角星 

import turtle
for i in range(5):
     turtle.forward(100)
     turtle.right(144)

画一个黄色实心五角星

import turtle
turtle.color('yellow')
turtle.fillcolor('yellow')
turtle.begin_fill()
for i in range(5):
     turtle.forward(100)
     turtle.right(144)
turtle.end_fill()